/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 --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/indp1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:37:08,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:37:08,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:37:08,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 23:37:08,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 23:37:08,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 23:37:08,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 23:37:08,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 23:37:08,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 23:37:08,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 23:37:08,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 23:37:08,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 23:37:08,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:37:08,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:37:08,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:37:08,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:37:08,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:37:08,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:37:08,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:37:08,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:37:08,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:37:08,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:37:08,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:37:08,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:37:08,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 23:37:08,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 23:37:08,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 23:37:08,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 23:37:08,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 23:37:08,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 23:37:08,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 23:37:08,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 23:37:08,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 23:37:08,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 23:37:08,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 23:37:08,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 23:37:08,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 23:37:08,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 23:37:08,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:37:08,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:37:08,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:37:08,683 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 [2020-07-19 23:37:08,697 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:37:08,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:37:08,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:37:08,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:37:08,699 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:37:08,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:37:08,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:37:08,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:37:08,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:37:08,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:37:08,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:37:08,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:37:08,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:37:08,701 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:37:08,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:37:08,701 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:37:08,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:37:08,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:37:08,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:37:08,702 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:37:08,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:37:08,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:37:08,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:37:08,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:37:08,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:37:08,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:37:08,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:37:08,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:37:08,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:37:08,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 23:37:09,042 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:37:09,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:37:09,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:37:09,060 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:37:09,060 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:37:09,061 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp1f.c [2020-07-19 23:37:09,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9468d2f16/8dd786daa5b44ed2a66f5b5b641443d1/FLAGa53a4d95b [2020-07-19 23:37:09,622 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:37:09,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp1f.c [2020-07-19 23:37:09,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9468d2f16/8dd786daa5b44ed2a66f5b5b641443d1/FLAGa53a4d95b [2020-07-19 23:37:09,954 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9468d2f16/8dd786daa5b44ed2a66f5b5b641443d1 [2020-07-19 23:37:09,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:37:09,966 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:37:09,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:37:09,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:37:09,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:37:09,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:37:09" (1/1) ... [2020-07-19 23:37:09,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c9afa0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:09, skipping insertion in model container [2020-07-19 23:37:09,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:37:09" (1/1) ... [2020-07-19 23:37:09,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:37:10,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:37:10,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:37:10,198 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:37:10,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:37:10,237 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:37:10,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:10 WrapperNode [2020-07-19 23:37:10,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:37:10,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:37:10,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:37:10,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:37:10,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:10" (1/1) ... [2020-07-19 23:37:10,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:10" (1/1) ... [2020-07-19 23:37:10,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:10" (1/1) ... [2020-07-19 23:37:10,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:10" (1/1) ... [2020-07-19 23:37:10,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:10" (1/1) ... [2020-07-19 23:37:10,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:10" (1/1) ... [2020-07-19 23:37:10,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:10" (1/1) ... [2020-07-19 23:37:10,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:37:10,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:37:10,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:37:10,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:37:10,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:10" (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 [2020-07-19 23:37:10,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:37:10,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:37:10,440 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-19 23:37:10,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-19 23:37:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:37:10,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:37:10,441 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-19 23:37:10,442 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-19 23:37:10,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-19 23:37:10,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:37:10,442 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 23:37:10,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:37:10,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 23:37:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 23:37:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 23:37:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:37:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:37:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 23:37:10,797 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:37:10,798 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-19 23:37:10,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:37:10 BoogieIcfgContainer [2020-07-19 23:37:10,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:37:10,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:37:10,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:37:10,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:37:10,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:37:09" (1/3) ... [2020-07-19 23:37:10,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62969ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:37:10, skipping insertion in model container [2020-07-19 23:37:10,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:10" (2/3) ... [2020-07-19 23:37:10,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62969ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:37:10, skipping insertion in model container [2020-07-19 23:37:10,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:37:10" (3/3) ... [2020-07-19 23:37:10,811 INFO L109 eAbstractionObserver]: Analyzing ICFG indp1f.c [2020-07-19 23:37:10,822 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:37:10,830 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:37:10,846 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:37:10,872 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:37:10,873 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:37:10,873 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:37:10,873 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:37:10,873 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:37:10,873 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:37:10,873 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:37:10,873 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:37:10,893 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-07-19 23:37:10,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-19 23:37:10,899 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:37:10,900 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] [2020-07-19 23:37:10,901 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:37:10,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:37:10,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1155719453, now seen corresponding path program 1 times [2020-07-19 23:37:10,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:37:10,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119588462] [2020-07-19 23:37:10,921 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2aee469f [2020-07-19 23:37:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:37:11,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119588462] [2020-07-19 23:37:11,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:37:11,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 23:37:11,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733241038] [2020-07-19 23:37:11,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:37:11,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:37:11,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:37:11,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 23:37:11,204 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2020-07-19 23:37:11,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:37:11,365 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2020-07-19 23:37:11,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:37:11,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-19 23:37:11,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:37:11,378 INFO L225 Difference]: With dead ends: 64 [2020-07-19 23:37:11,378 INFO L226 Difference]: Without dead ends: 32 [2020-07-19 23:37:11,382 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 [2020-07-19 23:37:11,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-19 23:37:11,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-07-19 23:37:11,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-19 23:37:11,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-07-19 23:37:11,427 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24 [2020-07-19 23:37:11,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:37:11,428 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-07-19 23:37:11,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:37:11,428 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-07-19 23:37:11,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-19 23:37:11,430 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:37:11,430 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] [2020-07-19 23:37:11,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:37:11,431 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:37:11,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:37:11,431 INFO L82 PathProgramCache]: Analyzing trace with hash -124144225, now seen corresponding path program 1 times [2020-07-19 23:37:11,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:37:11,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853828599] [2020-07-19 23:37:11,432 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2aee469f [2020-07-19 23:37:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:37:11,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853828599] [2020-07-19 23:37:11,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:37:11,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 23:37:11,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365989337] [2020-07-19 23:37:11,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 23:37:11,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:37:11,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 23:37:11,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:37:11,618 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 5 states. [2020-07-19 23:37:11,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:37:11,771 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2020-07-19 23:37:11,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 23:37:11,772 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-07-19 23:37:11,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:37:11,775 INFO L225 Difference]: With dead ends: 59 [2020-07-19 23:37:11,775 INFO L226 Difference]: Without dead ends: 42 [2020-07-19 23:37:11,776 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 [2020-07-19 23:37:11,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-19 23:37:11,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2020-07-19 23:37:11,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-19 23:37:11,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-07-19 23:37:11,790 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 24 [2020-07-19 23:37:11,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:37:11,790 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-07-19 23:37:11,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 23:37:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-07-19 23:37:11,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-19 23:37:11,792 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:37:11,792 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] [2020-07-19 23:37:11,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 23:37:11,792 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:37:11,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:37:11,793 INFO L82 PathProgramCache]: Analyzing trace with hash -191015719, now seen corresponding path program 1 times [2020-07-19 23:37:11,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:37:11,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396904374] [2020-07-19 23:37:11,794 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2aee469f [2020-07-19 23:37:11,817 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-19 23:37:11,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1386727230] [2020-07-19 23:37:11,818 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6b25b828 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 [2020-07-19 23:37:11,921 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6b25b828 issued 4 check-sat command(s) [2020-07-19 23:37:11,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-19 23:37:11,921 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:37:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:37:11,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:37:11,980 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 23:37:11,981 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 23:37:12,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-19 23:37:12,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:37:12 BoogieIcfgContainer [2020-07-19 23:37:12,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:37:12,234 INFO L168 Benchmark]: Toolchain (without parser) took 2268.38 ms. Allocated memory was 147.8 MB in the beginning and 232.8 MB in the end (delta: 84.9 MB). Free memory was 105.2 MB in the beginning and 200.2 MB in the end (delta: -95.1 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:12,235 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 124.0 MB in the beginning and 123.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-19 23:37:12,236 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.24 ms. Allocated memory is still 147.8 MB. Free memory was 104.7 MB in the beginning and 94.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:12,237 INFO L168 Benchmark]: Boogie Preprocessor took 119.31 ms. Allocated memory was 147.8 MB in the beginning and 201.9 MB in the end (delta: 54.0 MB). Free memory was 94.4 MB in the beginning and 180.0 MB in the end (delta: -85.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:12,238 INFO L168 Benchmark]: RCFGBuilder took 445.37 ms. Allocated memory is still 201.9 MB. Free memory was 180.0 MB in the beginning and 163.2 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:12,239 INFO L168 Benchmark]: TraceAbstraction took 1427.08 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 162.5 MB in the beginning and 200.2 MB in the end (delta: -37.7 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:12,244 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 124.0 MB in the beginning and 123.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.24 ms. Allocated memory is still 147.8 MB. Free memory was 104.7 MB in the beginning and 94.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.31 ms. Allocated memory was 147.8 MB in the beginning and 201.9 MB in the end (delta: 54.0 MB). Free memory was 94.4 MB in the beginning and 180.0 MB in the end (delta: -85.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 445.37 ms. Allocated memory is still 201.9 MB. Free memory was 180.0 MB in the beginning and 163.2 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1427.08 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 162.5 MB in the beginning and 200.2 MB in the end (delta: -37.7 MB). Peak memory consumption was 77.5 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)=2, 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 *a = malloc(sizeof(long long)*N); [L28] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(long long)*N)={-1:0}, N=1] [L28] COND TRUE i