/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/sina5f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:52:13,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:52:13,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:52:13,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 13:52:13,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 13:52:13,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 13:52:13,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 13:52:13,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 13:52:13,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 13:52:13,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 13:52:13,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 13:52:13,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 13:52:13,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:52:13,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:52:13,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:52:13,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:52:13,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:52:13,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:52:13,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:52:13,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:52:13,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:52:13,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:52:13,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:52:13,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:52:13,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 13:52:13,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:52:13,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:52:13,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:52:13,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-23 13:52:13,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:52:13,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:52:13,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:52:13,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:52:13,442 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:52:13,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:52:13,442 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:52:13,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:52:13,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:52:13,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:52:13,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:52:13,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:52:13,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:52:13,444 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:52:13,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:52:13,444 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:52:13,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:52:13,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:52:13,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:52:13,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:52:13,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:52:13,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:52:13,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:52:13,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:52:13,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:52:13,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:52:13,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:52:13,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:52:13,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:52:13,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:52:13,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:52:13,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:52:13,924 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:52:13,925 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:52:13,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina5f.c [2021-02-23 13:52:14,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/261f5abc6/5972ed77879e4339ac68b2860d3cf4c4/FLAG1b347c995 [2021-02-23 13:52:14,582 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:52:14,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina5f.c [2021-02-23 13:52:14,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/261f5abc6/5972ed77879e4339ac68b2860d3cf4c4/FLAG1b347c995 [2021-02-23 13:52:15,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/261f5abc6/5972ed77879e4339ac68b2860d3cf4c4 [2021-02-23 13:52:15,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:52:15,060 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:52:15,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:52:15,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:52:15,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:52:15,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:52:15" (1/1) ... [2021-02-23 13:52:15,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61de839c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:15, skipping insertion in model container [2021-02-23 13:52:15,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:52:15" (1/1) ... [2021-02-23 13:52:15,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:52:15,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:52:15,243 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina5f.c[589,602] [2021-02-23 13:52:15,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:52:15,278 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:52:15,290 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina5f.c[589,602] [2021-02-23 13:52:15,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:52:15,318 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:52:15,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:15 WrapperNode [2021-02-23 13:52:15,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:52:15,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:52:15,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:52:15,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:52:15,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:15" (1/1) ... [2021-02-23 13:52:15,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:15" (1/1) ... [2021-02-23 13:52:15,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:15" (1/1) ... [2021-02-23 13:52:15,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:15" (1/1) ... [2021-02-23 13:52:15,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:15" (1/1) ... [2021-02-23 13:52:15,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:15" (1/1) ... [2021-02-23 13:52:15,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:15" (1/1) ... [2021-02-23 13:52:15,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:52:15,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:52:15,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:52:15,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:52:15,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:15" (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 [2021-02-23 13:52:15,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:52:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:52:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:52:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-23 13:52:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 13:52:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:52:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:52:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:52:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:52:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:52:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-23 13:52:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 13:52:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 13:52:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 13:52:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:52:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 13:52:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:52:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:52:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:52:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:52:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:52:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:52:15,862 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:52:15,862 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-02-23 13:52:15,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:52:15 BoogieIcfgContainer [2021-02-23 13:52:15,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:52:15,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:52:15,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:52:15,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:52:15,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:52:15" (1/3) ... [2021-02-23 13:52:15,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82e1af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:52:15, skipping insertion in model container [2021-02-23 13:52:15,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:15" (2/3) ... [2021-02-23 13:52:15,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82e1af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:52:15, skipping insertion in model container [2021-02-23 13:52:15,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:52:15" (3/3) ... [2021-02-23 13:52:15,872 INFO L111 eAbstractionObserver]: Analyzing ICFG sina5f.c [2021-02-23 13:52:15,880 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:52:15,885 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:52:15,921 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:52:15,947 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:52:15,947 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:52:15,948 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:52:15,948 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:52:15,948 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:52:15,948 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:52:15,948 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:52:15,948 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:52:15,966 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2021-02-23 13:52:15,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-23 13:52:15,973 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:52:15,974 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] [2021-02-23 13:52:15,974 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:52:15,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:52:15,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1145952651, now seen corresponding path program 1 times [2021-02-23 13:52:15,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:52:15,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100230276] [2021-02-23 13:52:15,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:52:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:52:16,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:16,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:16,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:16,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:16,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:52:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:52:16,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:16,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:16,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-02-23 13:52:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:52:16,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:16,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:16,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:16,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:16,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:52:16,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100230276] [2021-02-23 13:52:16,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:52:16,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 13:52:16,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404115768] [2021-02-23 13:52:16,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 13:52:16,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:52:16,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 13:52:16,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 13:52:16,333 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 3 states. [2021-02-23 13:52:16,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:52:16,532 INFO L93 Difference]: Finished difference Result 76 states and 103 transitions. [2021-02-23 13:52:16,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 13:52:16,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-02-23 13:52:16,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:52:16,547 INFO L225 Difference]: With dead ends: 76 [2021-02-23 13:52:16,547 INFO L226 Difference]: Without dead ends: 38 [2021-02-23 13:52:16,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 13:52:16,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-02-23 13:52:16,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-02-23 13:52:16,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-02-23 13:52:16,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2021-02-23 13:52:16,611 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 28 [2021-02-23 13:52:16,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:52:16,612 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2021-02-23 13:52:16,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 13:52:16,612 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2021-02-23 13:52:16,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-23 13:52:16,614 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:52:16,614 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] [2021-02-23 13:52:16,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:52:16,616 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:52:16,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:52:16,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1573045881, now seen corresponding path program 1 times [2021-02-23 13:52:16,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:52:16,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140752115] [2021-02-23 13:52:16,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:52:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:52:16,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:16,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:16,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:16,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:52:16,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:16,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:52:16,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:16,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:16,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:52:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:52:16,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:16,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:16,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-02-23 13:52:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:52:16,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:16,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:16,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:52:16,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140752115] [2021-02-23 13:52:16,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:52:16,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 13:52:16,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554626121] [2021-02-23 13:52:16,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 13:52:16,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:52:16,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 13:52:16,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-23 13:52:16,822 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 5 states. [2021-02-23 13:52:17,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:52:17,032 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2021-02-23 13:52:17,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 13:52:17,037 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2021-02-23 13:52:17,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:52:17,044 INFO L225 Difference]: With dead ends: 75 [2021-02-23 13:52:17,044 INFO L226 Difference]: Without dead ends: 52 [2021-02-23 13:52:17,052 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 [2021-02-23 13:52:17,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-02-23 13:52:17,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2021-02-23 13:52:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2021-02-23 13:52:17,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2021-02-23 13:52:17,080 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 28 [2021-02-23 13:52:17,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:52:17,080 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2021-02-23 13:52:17,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 13:52:17,081 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2021-02-23 13:52:17,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-02-23 13:52:17,082 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:52:17,083 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] [2021-02-23 13:52:17,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 13:52:17,083 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:52:17,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:52:17,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1009849533, now seen corresponding path program 1 times [2021-02-23 13:52:17,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:52:17,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576492178] [2021-02-23 13:52:17,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:52:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:52:17,187 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:52:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:52:17,255 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:52:17,311 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 13:52:17,311 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 13:52:17,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 13:52:17,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:52:17 BoogieIcfgContainer [2021-02-23 13:52:17,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:52:17,416 INFO L168 Benchmark]: Toolchain (without parser) took 2363.63 ms. Allocated memory was 151.0 MB in the beginning and 196.1 MB in the end (delta: 45.1 MB). Free memory was 126.0 MB in the beginning and 172.9 MB in the end (delta: -46.9 MB). Peak memory consumption was 79.8 MB. Max. memory is 8.0 GB. [2021-02-23 13:52:17,417 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 122.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:52:17,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.03 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 114.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:52:17,420 INFO L168 Benchmark]: Boogie Preprocessor took 41.40 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 113.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:52:17,421 INFO L168 Benchmark]: RCFGBuilder took 501.37 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 131.2 MB in the end (delta: -18.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:52:17,422 INFO L168 Benchmark]: TraceAbstraction took 1546.91 ms. Allocated memory was 151.0 MB in the beginning and 196.1 MB in the end (delta: 45.1 MB). Free memory was 130.6 MB in the beginning and 172.9 MB in the end (delta: -42.3 MB). Peak memory consumption was 83.9 MB. Max. memory is 8.0 GB. [2021-02-23 13:52:17,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 122.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 255.03 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 114.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.40 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 113.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 501.37 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 131.2 MB in the end (delta: -18.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1546.91 ms. Allocated memory was 151.0 MB in the beginning and 196.1 MB in the end (delta: 45.1 MB). Free memory was 130.6 MB in the beginning and 172.9 MB in the end (delta: -42.3 MB). Peak memory consumption was 83.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [\old(N)=51, N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L30] long long *b = malloc(sizeof(long long)*N); [L32] sum[0] = 0 [L33] i=0 VAL [\old(N)=0, a={-1:0}, b={11:0}, i=0, malloc(sizeof(long long)*N)={-1:0}, malloc(sizeof(long long)*N)={11:0}, N=1, sum={13:0}] [L33] COND TRUE i