/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/array-fpi/indp5f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 21:45:02,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 21:45:02,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 21:45:02,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 21:45:02,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 21:45:02,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 21:45:02,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 21:45:02,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 21:45:02,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 21:45:02,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 21:45:02,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 21:45:02,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 21:45:02,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 21:45:02,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 21:45:02,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 21:45:02,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 21:45:02,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 21:45:02,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 21:45:02,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 21:45:02,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 21:45:02,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 21:45:02,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 21:45:02,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 21:45:02,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 21:45:02,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 21:45:02,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 21:45:02,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 21:45:02,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 21:45:02,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 21:45:02,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 21:45:02,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 21:45:02,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 21:45:02,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 21:45:02,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 21:45:02,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 21:45:02,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 21:45:02,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 21:45:02,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 21:45:02,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 21:45:02,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 21:45:02,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 21:45:02,684 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 21:45:02,706 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 21:45:02,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 21:45:02,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 21:45:02,712 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 21:45:02,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 21:45:02,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 21:45:02,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 21:45:02,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 21:45:02,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 21:45:02,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 21:45:02,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 21:45:02,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 21:45:02,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 21:45:02,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 21:45:02,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 21:45:02,717 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 21:45:02,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 21:45:02,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 21:45:02,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 21:45:02,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 21:45:02,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 21:45:02,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 21:45:02,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 21:45:03,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 21:45:03,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 21:45:03,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 21:45:03,174 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 21:45:03,174 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 21:45:03,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp5f.c [2020-10-23 21:45:03,271 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d07e7f14d/b0a4b1bcb5374b37b124c6a502bf88c0/FLAG252ab73ee [2020-10-23 21:45:03,899 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 21:45:03,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp5f.c [2020-10-23 21:45:03,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d07e7f14d/b0a4b1bcb5374b37b124c6a502bf88c0/FLAG252ab73ee [2020-10-23 21:45:04,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d07e7f14d/b0a4b1bcb5374b37b124c6a502bf88c0 [2020-10-23 21:45:04,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 21:45:04,306 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 21:45:04,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 21:45:04,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 21:45:04,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 21:45:04,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:45:04" (1/1) ... [2020-10-23 21:45:04,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3edf3e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:04, skipping insertion in model container [2020-10-23 21:45:04,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:45:04" (1/1) ... [2020-10-23 21:45:04,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 21:45:04,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 21:45:04,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 21:45:04,662 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 21:45:04,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 21:45:04,733 INFO L208 MainTranslator]: Completed translation [2020-10-23 21:45:04,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:04 WrapperNode [2020-10-23 21:45:04,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 21:45:04,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 21:45:04,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 21:45:04,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 21:45:04,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:04" (1/1) ... [2020-10-23 21:45:04,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:04" (1/1) ... [2020-10-23 21:45:04,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:04" (1/1) ... [2020-10-23 21:45:04,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:04" (1/1) ... [2020-10-23 21:45:04,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:04" (1/1) ... [2020-10-23 21:45:04,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:04" (1/1) ... [2020-10-23 21:45:04,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:04" (1/1) ... [2020-10-23 21:45:04,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 21:45:04,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 21:45:04,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 21:45:04,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 21:45:04,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:04" (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 21:45:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 21:45:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 21:45:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 21:45:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-23 21:45:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 21:45:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 21:45:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 21:45:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 21:45:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 21:45:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 21:45:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-23 21:45:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 21:45:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 21:45:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 21:45:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 21:45:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 21:45:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 21:45:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 21:45:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 21:45:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 21:45:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 21:45:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 21:45:05,344 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 21:45:05,345 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 21:45:05,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:45:05 BoogieIcfgContainer [2020-10-23 21:45:05,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 21:45:05,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 21:45:05,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 21:45:05,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 21:45:05,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:45:04" (1/3) ... [2020-10-23 21:45:05,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be3c1f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:45:05, skipping insertion in model container [2020-10-23 21:45:05,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:04" (2/3) ... [2020-10-23 21:45:05,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be3c1f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:45:05, skipping insertion in model container [2020-10-23 21:45:05,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:45:05" (3/3) ... [2020-10-23 21:45:05,357 INFO L111 eAbstractionObserver]: Analyzing ICFG indp5f.c [2020-10-23 21:45:05,369 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 21:45:05,374 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 21:45:05,389 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 21:45:05,412 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 21:45:05,412 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 21:45:05,412 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 21:45:05,412 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 21:45:05,412 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 21:45:05,412 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 21:45:05,412 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 21:45:05,413 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 21:45:05,430 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-10-23 21:45:05,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-23 21:45:05,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:45:05,442 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] [2020-10-23 21:45:05,443 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:45:05,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:45:05,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1793350028, now seen corresponding path program 1 times [2020-10-23 21:45:05,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:45:05,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124316123] [2020-10-23 21:45:05,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:45:05,542 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:45:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:45:05,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:45:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:45:05,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-23 21:45:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:45:05,939 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 21:45:05,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124316123] [2020-10-23 21:45:05,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:45:05,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 21:45:05,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189099014] [2020-10-23 21:45:05,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 21:45:05,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:45:05,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 21:45:05,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 21:45:05,970 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 3 states. [2020-10-23 21:45:06,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:45:06,258 INFO L93 Difference]: Finished difference Result 153 states and 177 transitions. [2020-10-23 21:45:06,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 21:45:06,260 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2020-10-23 21:45:06,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:45:06,270 INFO L225 Difference]: With dead ends: 153 [2020-10-23 21:45:06,270 INFO L226 Difference]: Without dead ends: 74 [2020-10-23 21:45:06,274 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 [2020-10-23 21:45:06,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-23 21:45:06,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-23 21:45:06,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-23 21:45:06,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2020-10-23 21:45:06,331 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 43 [2020-10-23 21:45:06,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:45:06,332 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2020-10-23 21:45:06,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 21:45:06,332 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2020-10-23 21:45:06,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-23 21:45:06,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:45:06,335 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] [2020-10-23 21:45:06,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 21:45:06,336 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:45:06,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:45:06,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1547866676, now seen corresponding path program 1 times [2020-10-23 21:45:06,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:45:06,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602181813] [2020-10-23 21:45:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:45:06,343 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:45:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:45:06,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:45:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:45:06,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-23 21:45:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:45:06,506 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 21:45:06,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602181813] [2020-10-23 21:45:06,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:45:06,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 21:45:06,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939010287] [2020-10-23 21:45:06,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 21:45:06,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:45:06,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 21:45:06,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 21:45:06,510 INFO L87 Difference]: Start difference. First operand 74 states and 78 transitions. Second operand 5 states. [2020-10-23 21:45:06,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:45:06,834 INFO L93 Difference]: Finished difference Result 145 states and 157 transitions. [2020-10-23 21:45:06,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 21:45:06,835 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-10-23 21:45:06,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:45:06,837 INFO L225 Difference]: With dead ends: 145 [2020-10-23 21:45:06,837 INFO L226 Difference]: Without dead ends: 104 [2020-10-23 21:45:06,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-23 21:45:06,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-23 21:45:06,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 79. [2020-10-23 21:45:06,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-23 21:45:06,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2020-10-23 21:45:06,858 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 43 [2020-10-23 21:45:06,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:45:06,858 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2020-10-23 21:45:06,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 21:45:06,858 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2020-10-23 21:45:06,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-23 21:45:06,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:45:06,861 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, 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] [2020-10-23 21:45:06,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 21:45:06,862 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:45:06,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:45:06,862 INFO L82 PathProgramCache]: Analyzing trace with hash 420162924, now seen corresponding path program 1 times [2020-10-23 21:45:06,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:45:06,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375229242] [2020-10-23 21:45:06,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:45:07,047 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 21:45:07,050 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:45:07,073 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-23 21:45:07,073 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 21:45:07,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 21:45:07,100 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-23 21:45:07,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:45:07 BoogieIcfgContainer [2020-10-23 21:45:07,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 21:45:07,104 INFO L168 Benchmark]: Toolchain (without parser) took 2802.98 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 70.2 MB in the end (delta: 56.7 MB). Peak memory consumption was 57.5 MB. Max. memory is 8.0 GB. [2020-10-23 21:45:07,105 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 21:45:07,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.53 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 21:45:07,108 INFO L168 Benchmark]: Boogie Preprocessor took 44.23 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 21:45:07,109 INFO L168 Benchmark]: RCFGBuilder took 566.78 ms. Allocated memory is still 151.0 MB. Free memory was 114.4 MB in the beginning and 126.6 MB in the end (delta: -12.2 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2020-10-23 21:45:07,110 INFO L168 Benchmark]: TraceAbstraction took 1752.25 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 70.2 MB in the end (delta: 55.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 8.0 GB. [2020-10-23 21:45:07,114 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 420.53 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.23 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 566.78 ms. Allocated memory is still 151.0 MB. Free memory was 114.4 MB in the beginning and 126.6 MB in the end (delta: -12.2 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1752.25 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 70.2 MB in the end (delta: 55.9 MB). Peak memory consumption was 56.9 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 *a = malloc(sizeof(long long)*N); [L29] long long sum[1]; [L31] sum[0] = 1 [L32] i=0 [L32] COND TRUE i