/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/ssinaf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:32:37,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:32:37,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:32:37,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:32:37,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:32:37,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:32:37,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:32:37,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:32:37,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:32:37,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:32:37,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:32:37,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:32:37,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:32:37,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:32:37,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:32:37,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:32:37,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:32:37,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:32:37,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:32:37,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:32:37,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:32:37,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:32:37,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:32:37,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:32:37,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 11:32:37,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 11:32:37,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 11:32:37,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 11:32:37,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 11:32:37,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 11:32:37,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 11:32:37,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 11:32:37,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 11:32:37,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 11:32:37,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 11:32:37,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 11:32:37,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 11:32:37,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 11:32:37,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:32:37,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:32:37,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:32:37,951 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:32:37,966 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:32:37,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:32:37,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:32:37,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:32:37,968 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:32:37,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:32:37,968 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:32:37,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:32:37,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:32:37,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:32:37,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:32:37,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:32:37,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:32:37,970 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:32:37,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:32:37,970 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:32:37,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:32:37,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:32:37,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:32:37,971 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:32:37,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:32:37,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:32:37,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:32:37,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:32:37,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:32:37,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:32:37,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:32:37,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:32:37,973 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:32:37,973 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:32:38,243 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:32:38,256 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:32:38,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:32:38,261 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:32:38,261 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:32:38,262 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ssinaf.c [2020-07-07 11:32:38,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5853b8fd0/21690db3f06046c4b2d7ae8403885b5c/FLAG9f38a5ced [2020-07-07 11:32:38,752 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:32:38,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ssinaf.c [2020-07-07 11:32:38,760 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5853b8fd0/21690db3f06046c4b2d7ae8403885b5c/FLAG9f38a5ced [2020-07-07 11:32:39,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5853b8fd0/21690db3f06046c4b2d7ae8403885b5c [2020-07-07 11:32:39,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:32:39,155 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:32:39,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:32:39,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:32:39,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:32:39,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:32:39" (1/1) ... [2020-07-07 11:32:39,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579be97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:39, skipping insertion in model container [2020-07-07 11:32:39,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:32:39" (1/1) ... [2020-07-07 11:32:39,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:32:39,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:32:39,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:32:39,381 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:32:39,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:32:39,423 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:32:39,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:39 WrapperNode [2020-07-07 11:32:39,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:32:39,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:32:39,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:32:39,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:32:39,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:39" (1/1) ... [2020-07-07 11:32:39,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:39" (1/1) ... [2020-07-07 11:32:39,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:39" (1/1) ... [2020-07-07 11:32:39,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:39" (1/1) ... [2020-07-07 11:32:39,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:39" (1/1) ... [2020-07-07 11:32:39,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:39" (1/1) ... [2020-07-07 11:32:39,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:39" (1/1) ... [2020-07-07 11:32:39,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:32:39,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:32:39,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:32:39,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:32:39,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:39" (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 [2020-07-07 11:32:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:32:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:32:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 11:32:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 11:32:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:32:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:32:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 11:32:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 11:32:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 11:32:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:32:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 11:32:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:32:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 11:32:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 11:32:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 11:32:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 11:32:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 11:32:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:32:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:32:39,897 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:32:39,898 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-07 11:32:39,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:32:39 BoogieIcfgContainer [2020-07-07 11:32:39,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:32:39,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:32:39,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:32:39,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:32:39,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:32:39" (1/3) ... [2020-07-07 11:32:39,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509b18a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:32:39, skipping insertion in model container [2020-07-07 11:32:39,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:39" (2/3) ... [2020-07-07 11:32:39,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509b18a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:32:39, skipping insertion in model container [2020-07-07 11:32:39,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:32:39" (3/3) ... [2020-07-07 11:32:39,911 INFO L109 eAbstractionObserver]: Analyzing ICFG ssinaf.c [2020-07-07 11:32:39,924 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:32:39,933 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:32:39,950 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:32:39,978 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:32:39,978 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:32:39,978 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:32:39,978 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:32:39,978 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:32:39,978 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:32:39,979 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:32:39,979 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:32:40,001 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-07-07 11:32:40,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-07 11:32:40,010 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:32:40,011 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] [2020-07-07 11:32:40,011 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:32:40,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:32:40,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1994596369, now seen corresponding path program 1 times [2020-07-07 11:32:40,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:32:40,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122792000] [2020-07-07 11:32:40,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:32:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:32:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:32:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:32:40,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:32:40,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122792000] [2020-07-07 11:32:40,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:32:40,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 11:32:40,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391878543] [2020-07-07 11:32:40,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:32:40,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:32:40,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:32:40,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 11:32:40,292 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 3 states. [2020-07-07 11:32:40,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:32:40,423 INFO L93 Difference]: Finished difference Result 76 states and 103 transitions. [2020-07-07 11:32:40,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:32:40,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-07-07 11:32:40,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:32:40,435 INFO L225 Difference]: With dead ends: 76 [2020-07-07 11:32:40,435 INFO L226 Difference]: Without dead ends: 38 [2020-07-07 11:32:40,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 11:32:40,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-07-07 11:32:40,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-07-07 11:32:40,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-07 11:32:40,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2020-07-07 11:32:40,484 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 28 [2020-07-07 11:32:40,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:32:40,484 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2020-07-07 11:32:40,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:32:40,485 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-07-07 11:32:40,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-07 11:32:40,486 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:32:40,486 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] [2020-07-07 11:32:40,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:32:40,487 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:32:40,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:32:40,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1530390023, now seen corresponding path program 1 times [2020-07-07 11:32:40,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:32:40,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147928906] [2020-07-07 11:32:40,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:32:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:32:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:32:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:32:40,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:32:40,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147928906] [2020-07-07 11:32:40,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:32:40,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:32:40,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105203652] [2020-07-07 11:32:40,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:32:40,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:32:40,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:32:40,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:32:40,643 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 5 states. [2020-07-07 11:32:40,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:32:40,828 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2020-07-07 11:32:40,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:32:40,829 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-07-07 11:32:40,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:32:40,832 INFO L225 Difference]: With dead ends: 75 [2020-07-07 11:32:40,833 INFO L226 Difference]: Without dead ends: 52 [2020-07-07 11:32:40,834 INFO L675 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 [2020-07-07 11:32:40,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-07-07 11:32:40,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2020-07-07 11:32:40,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-07-07 11:32:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2020-07-07 11:32:40,850 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 28 [2020-07-07 11:32:40,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:32:40,850 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2020-07-07 11:32:40,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:32:40,850 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2020-07-07 11:32:40,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-07 11:32:40,852 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:32:40,852 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] [2020-07-07 11:32:40,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:32:40,853 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:32:40,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:32:40,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1357692925, now seen corresponding path program 1 times [2020-07-07 11:32:40,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:32:40,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634454374] [2020-07-07 11:32:40,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:32:40,911 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-07 11:32:40,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [906889202] [2020-07-07 11:32:40,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:32:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 11:32:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 11:32:41,092 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 11:32:41,093 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 11:32:41,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-07 11:32:41,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:32:41 BoogieIcfgContainer [2020-07-07 11:32:41,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:32:41,354 INFO L168 Benchmark]: Toolchain (without parser) took 2198.49 ms. Allocated memory was 135.3 MB in the beginning and 226.0 MB in the end (delta: 90.7 MB). Free memory was 99.8 MB in the beginning and 191.4 MB in the end (delta: -91.6 MB). Peak memory consumption was 92.2 MB. Max. memory is 7.1 GB. [2020-07-07 11:32:41,355 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 135.3 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 11:32:41,356 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.89 ms. Allocated memory is still 135.3 MB. Free memory was 99.6 MB in the beginning and 88.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:32:41,357 INFO L168 Benchmark]: Boogie Preprocessor took 116.35 ms. Allocated memory was 135.3 MB in the beginning and 198.7 MB in the end (delta: 63.4 MB). Free memory was 88.6 MB in the beginning and 175.8 MB in the end (delta: -87.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:32:41,358 INFO L168 Benchmark]: RCFGBuilder took 360.43 ms. Allocated memory is still 198.7 MB. Free memory was 175.8 MB in the beginning and 155.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-07-07 11:32:41,359 INFO L168 Benchmark]: TraceAbstraction took 1448.80 ms. Allocated memory was 198.7 MB in the beginning and 226.0 MB in the end (delta: 27.3 MB). Free memory was 155.9 MB in the beginning and 191.4 MB in the end (delta: -35.5 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. [2020-07-07 11:32:41,364 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 135.3 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 267.89 ms. Allocated memory is still 135.3 MB. Free memory was 99.6 MB in the beginning and 88.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.35 ms. Allocated memory was 135.3 MB in the beginning and 198.7 MB in the end (delta: 63.4 MB). Free memory was 88.6 MB in the beginning and 175.8 MB in the end (delta: -87.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 360.43 ms. Allocated memory is still 198.7 MB. Free memory was 175.8 MB in the beginning and 155.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1448.80 ms. Allocated memory was 198.7 MB in the beginning and 226.0 MB in the end (delta: 27.3 MB). Free memory was 155.9 MB in the beginning and 191.4 MB in the end (delta: -35.5 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; VAL [\old(N)=4, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L25] int i; [L26] long long sum[1]; [L27] long long *a = malloc(sizeof(long long)*N); [L29] sum[0] = 0 [L30] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(long long)*N)={-1:0}, N=1, sum={2:0}] [L30] COND TRUE i