/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/condaf.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 01:56:00,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 01:56:00,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 01:56:00,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 01:56:00,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 01:56:00,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 01:56:00,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 01:56:00,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 01:56:00,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 01:56:00,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 01:56:00,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 01:56:00,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 01:56:00,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 01:56:00,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 01:56:00,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 01:56:00,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 01:56:00,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 01:56:00,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 01:56:00,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 01:56:00,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 01:56:00,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 01:56:00,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 01:56:00,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 01:56:00,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 01:56:00,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 01:56:00,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 01:56:00,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 01:56:00,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 01:56:00,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 01:56:00,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 01:56:00,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 01:56:00,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 01:56:00,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 01:56:00,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 01:56:00,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 01:56:00,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 01:56:00,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 01:56:00,946 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 01:56:00,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 01:56:00,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 01:56:00,949 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 01:56:00,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 01:56:00,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 01:56:00,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 01:56:00,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 01:56:00,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 01:56:00,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 01:56:00,950 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 01:56:00,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 01:56:00,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 01:56:00,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 01:56:00,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 01:56:00,952 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 01:56:00,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 01:56:00,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 01:56:00,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 01:56:00,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 01:56:00,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 01:56:00,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 01:56:00,953 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 01:56:01,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 01:56:01,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 01:56:01,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 01:56:01,371 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 01:56:01,372 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 01:56:01,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condaf.c [2020-11-07 01:56:01,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e9d84f51/74973717ea894bb5a06c77c4345755f0/FLAGe31e84b36 [2020-11-07 01:56:02,251 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 01:56:02,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condaf.c [2020-11-07 01:56:02,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e9d84f51/74973717ea894bb5a06c77c4345755f0/FLAGe31e84b36 [2020-11-07 01:56:02,593 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e9d84f51/74973717ea894bb5a06c77c4345755f0 [2020-11-07 01:56:02,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 01:56:02,608 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 01:56:02,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 01:56:02,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 01:56:02,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 01:56:02,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:56:02" (1/1) ... [2020-11-07 01:56:02,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db729b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:02, skipping insertion in model container [2020-11-07 01:56:02,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:56:02" (1/1) ... [2020-11-07 01:56:02,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 01:56:02,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 01:56:02,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:56:02,853 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 01:56:02,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:56:02,928 INFO L208 MainTranslator]: Completed translation [2020-11-07 01:56:02,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:02 WrapperNode [2020-11-07 01:56:02,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 01:56:02,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 01:56:02,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 01:56:02,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 01:56:02,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:02" (1/1) ... [2020-11-07 01:56:02,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:02" (1/1) ... [2020-11-07 01:56:02,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:02" (1/1) ... [2020-11-07 01:56:02,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:02" (1/1) ... [2020-11-07 01:56:02,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:02" (1/1) ... [2020-11-07 01:56:03,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:02" (1/1) ... [2020-11-07 01:56:03,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:02" (1/1) ... [2020-11-07 01:56:03,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 01:56:03,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 01:56:03,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 01:56:03,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 01:56:03,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:02" (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 [2020-11-07 01:56:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 01:56:03,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 01:56:03,128 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 01:56:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-07 01:56:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 01:56:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 01:56:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 01:56:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 01:56:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 01:56:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 01:56:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-07 01:56:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 01:56:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 01:56:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 01:56:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 01:56:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 01:56:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 01:56:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 01:56:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 01:56:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 01:56:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 01:56:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 01:56:03,799 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 01:56:03,799 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-11-07 01:56:03,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:56:03 BoogieIcfgContainer [2020-11-07 01:56:03,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 01:56:03,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 01:56:03,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 01:56:03,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 01:56:03,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:56:02" (1/3) ... [2020-11-07 01:56:03,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564a91cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:56:03, skipping insertion in model container [2020-11-07 01:56:03,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:02" (2/3) ... [2020-11-07 01:56:03,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564a91cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:56:03, skipping insertion in model container [2020-11-07 01:56:03,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:56:03" (3/3) ... [2020-11-07 01:56:03,813 INFO L111 eAbstractionObserver]: Analyzing ICFG condaf.c [2020-11-07 01:56:03,831 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 01:56:03,835 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 01:56:03,849 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 01:56:03,877 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 01:56:03,877 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 01:56:03,877 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 01:56:03,877 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 01:56:03,877 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 01:56:03,878 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 01:56:03,878 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 01:56:03,878 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 01:56:03,897 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-11-07 01:56:03,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-07 01:56:03,910 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:56:03,911 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] [2020-11-07 01:56:03,911 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:56:03,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:56:03,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1165353355, now seen corresponding path program 1 times [2020-11-07 01:56:03,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:56:03,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887987888] [2020-11-07 01:56:03,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:56:04,015 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:56:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:56:04,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:56:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:56:04,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-11-07 01:56:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:56:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 01:56:04,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887987888] [2020-11-07 01:56:04,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:56:04,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 01:56:04,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903811497] [2020-11-07 01:56:04,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 01:56:04,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:56:04,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 01:56:04,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 01:56:04,358 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2020-11-07 01:56:04,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:56:04,589 INFO L93 Difference]: Finished difference Result 135 states and 153 transitions. [2020-11-07 01:56:04,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 01:56:04,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2020-11-07 01:56:04,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:56:04,609 INFO L225 Difference]: With dead ends: 135 [2020-11-07 01:56:04,609 INFO L226 Difference]: Without dead ends: 65 [2020-11-07 01:56:04,616 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 [2020-11-07 01:56:04,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-07 01:56:04,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-11-07 01:56:04,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-07 01:56:04,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2020-11-07 01:56:04,727 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 39 [2020-11-07 01:56:04,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:56:04,728 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2020-11-07 01:56:04,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 01:56:04,729 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2020-11-07 01:56:04,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-07 01:56:04,731 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:56:04,731 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] [2020-11-07 01:56:04,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 01:56:04,733 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:56:04,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:56:04,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1782259906, now seen corresponding path program 1 times [2020-11-07 01:56:04,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:56:04,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368134910] [2020-11-07 01:56:04,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:56:04,747 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:56:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:56:04,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:56:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:56:04,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-11-07 01:56:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:56:04,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 01:56:04,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368134910] [2020-11-07 01:56:04,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:56:04,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 01:56:04,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799067149] [2020-11-07 01:56:04,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 01:56:04,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:56:04,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 01:56:05,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 01:56:05,004 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand 5 states. [2020-11-07 01:56:05,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:56:05,287 INFO L93 Difference]: Finished difference Result 122 states and 131 transitions. [2020-11-07 01:56:05,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 01:56:05,288 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-11-07 01:56:05,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:56:05,290 INFO L225 Difference]: With dead ends: 122 [2020-11-07 01:56:05,290 INFO L226 Difference]: Without dead ends: 90 [2020-11-07 01:56:05,292 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 [2020-11-07 01:56:05,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-11-07 01:56:05,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 68. [2020-11-07 01:56:05,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-07 01:56:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2020-11-07 01:56:05,312 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 39 [2020-11-07 01:56:05,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:56:05,312 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2020-11-07 01:56:05,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 01:56:05,312 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2020-11-07 01:56:05,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-07 01:56:05,315 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:56:05,315 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] [2020-11-07 01:56:05,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 01:56:05,315 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:56:05,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:56:05,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1725322241, now seen corresponding path program 1 times [2020-11-07 01:56:05,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:56:05,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321829424] [2020-11-07 01:56:05,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:56:05,372 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-11-07 01:56:05,374 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:56:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:56:05,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:56:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:56:05,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-11-07 01:56:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:56:05,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 01:56:05,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321829424] [2020-11-07 01:56:05,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:56:05,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-07 01:56:05,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41384988] [2020-11-07 01:56:05,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-07 01:56:05,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:56:05,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-07 01:56:05,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-11-07 01:56:05,909 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 12 states. [2020-11-07 01:56:06,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:56:06,571 INFO L93 Difference]: Finished difference Result 130 states and 138 transitions. [2020-11-07 01:56:06,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 01:56:06,572 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 63 [2020-11-07 01:56:06,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:56:06,573 INFO L225 Difference]: With dead ends: 130 [2020-11-07 01:56:06,573 INFO L226 Difference]: Without dead ends: 98 [2020-11-07 01:56:06,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2020-11-07 01:56:06,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-11-07 01:56:06,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 70. [2020-11-07 01:56:06,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-11-07 01:56:06,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2020-11-07 01:56:06,591 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 63 [2020-11-07 01:56:06,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:56:06,592 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2020-11-07 01:56:06,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-07 01:56:06,592 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2020-11-07 01:56:06,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-07 01:56:06,594 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:56:06,594 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] [2020-11-07 01:56:06,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 01:56:06,595 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:56:06,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:56:06,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1984381639, now seen corresponding path program 1 times [2020-11-07 01:56:06,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:56:06,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2381611] [2020-11-07 01:56:06,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:56:06,635 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-11-07 01:56:06,637 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:56:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 01:56:06,670 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 01:56:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 01:56:06,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 01:56:06,742 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 01:56:06,742 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 01:56:06,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 01:56:06,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:56:06 BoogieIcfgContainer [2020-11-07 01:56:06,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 01:56:06,767 INFO L168 Benchmark]: Toolchain (without parser) took 4164.87 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 127.9 MB in the beginning and 155.5 MB in the end (delta: -27.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:06,768 INFO L168 Benchmark]: CDTParser took 0.33 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. [2020-11-07 01:56:06,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.77 ms. Allocated memory is still 151.0 MB. Free memory was 127.3 MB in the beginning and 117.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:06,770 INFO L168 Benchmark]: Boogie Preprocessor took 85.24 ms. Allocated memory is still 151.0 MB. Free memory was 117.4 MB in the beginning and 115.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:06,771 INFO L168 Benchmark]: RCFGBuilder took 784.09 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 130.3 MB in the end (delta: -14.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:06,772 INFO L168 Benchmark]: TraceAbstraction took 2960.42 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 129.8 MB in the beginning and 155.5 MB in the end (delta: -25.7 MB). Peak memory consumption was 5.8 MB. Max. memory is 8.0 GB. [2020-11-07 01:56:06,775 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 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 318.77 ms. Allocated memory is still 151.0 MB. Free memory was 127.3 MB in the beginning and 117.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 85.24 ms. Allocated memory is still 151.0 MB. Free memory was 117.4 MB in the beginning and 115.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 784.09 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 130.3 MB in the end (delta: -14.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2960.42 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 129.8 MB in the beginning and 155.5 MB in the end (delta: -25.7 MB). Peak memory consumption was 5.8 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; [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] int sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 [L32] COND TRUE i