/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/indp3f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:37:19,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:37:19,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:37:19,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 23:37:19,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 23:37:19,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 23:37:19,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 23:37:19,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 23:37:19,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 23:37:19,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 23:37:19,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 23:37:19,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 23:37:19,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:37:19,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:37:19,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:37:19,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:37:19,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:37:19,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:37:19,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:37:19,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:37:19,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:37:19,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:37:19,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:37:19,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:37:19,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 23:37:19,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:37:19,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:37:19,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:37:19,898 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 23:37:19,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:37:19,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:37:19,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:37:19,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:37:19,937 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:37:19,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:37:19,938 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:37:19,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:37:19,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:37:19,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:37:19,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:37:19,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:37:19,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:37:19,939 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:37:19,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:37:19,942 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:37:19,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:37:19,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:37:19,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:37:19,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:37:19,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:37:19,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:37:19,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:37:19,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:37:19,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:37:19,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:37:19,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:37:19,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:37:19,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:37:19,946 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 23:37:20,210 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:37:20,222 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:37:20,225 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:37:20,226 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:37:20,226 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:37:20,227 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp3f.c [2020-07-19 23:37:20,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31fd59575/e00d17389d1648778c3fd5862d12efdc/FLAG64f88dfd4 [2020-07-19 23:37:20,750 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:37:20,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp3f.c [2020-07-19 23:37:20,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31fd59575/e00d17389d1648778c3fd5862d12efdc/FLAG64f88dfd4 [2020-07-19 23:37:21,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31fd59575/e00d17389d1648778c3fd5862d12efdc [2020-07-19 23:37:21,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:37:21,127 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:37:21,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:37:21,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:37:21,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:37:21,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:37:21" (1/1) ... [2020-07-19 23:37:21,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472d2004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:21, skipping insertion in model container [2020-07-19 23:37:21,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:37:21" (1/1) ... [2020-07-19 23:37:21,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:37:21,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:37:21,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:37:21,359 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:37:21,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:37:21,394 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:37:21,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:21 WrapperNode [2020-07-19 23:37:21,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:37:21,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:37:21,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:37:21,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:37:21,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:21" (1/1) ... [2020-07-19 23:37:21,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:21" (1/1) ... [2020-07-19 23:37:21,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:21" (1/1) ... [2020-07-19 23:37:21,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:21" (1/1) ... [2020-07-19 23:37:21,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:21" (1/1) ... [2020-07-19 23:37:21,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:21" (1/1) ... [2020-07-19 23:37:21,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:21" (1/1) ... [2020-07-19 23:37:21,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:37:21,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:37:21,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:37:21,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:37:21,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:21" (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 23:37:21,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:37:21,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:37:21,575 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-19 23:37:21,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-19 23:37:21,575 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:37:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:37:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-19 23:37:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-19 23:37:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-19 23:37:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:37:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 23:37:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:37:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 23:37:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 23:37:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 23:37:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:37:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:37:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 23:37:21,834 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:37:21,834 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 23:37:21,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:37:21 BoogieIcfgContainer [2020-07-19 23:37:21,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:37:21,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:37:21,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:37:21,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:37:21,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:37:21" (1/3) ... [2020-07-19 23:37:21,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351db388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:37:21, skipping insertion in model container [2020-07-19 23:37:21,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:21" (2/3) ... [2020-07-19 23:37:21,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351db388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:37:21, skipping insertion in model container [2020-07-19 23:37:21,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:37:21" (3/3) ... [2020-07-19 23:37:21,847 INFO L109 eAbstractionObserver]: Analyzing ICFG indp3f.c [2020-07-19 23:37:21,857 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:37:21,864 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:37:21,880 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:37:21,908 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:37:21,908 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:37:21,908 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:37:21,909 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:37:21,909 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:37:21,909 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:37:21,909 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:37:21,910 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:37:21,963 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-19 23:37:21,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-19 23:37:21,978 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:37:21,979 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] [2020-07-19 23:37:21,980 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:37:21,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:37:21,997 INFO L82 PathProgramCache]: Analyzing trace with hash -173101897, now seen corresponding path program 1 times [2020-07-19 23:37:22,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:37:22,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299944359] [2020-07-19 23:37:22,009 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6cfb181e [2020-07-19 23:37:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:22,213 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 23:37:22,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299944359] [2020-07-19 23:37:22,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:37:22,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 23:37:22,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796058012] [2020-07-19 23:37:22,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:37:22,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:37:22,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:37:22,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 23:37:22,245 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-07-19 23:37:22,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:37:22,387 INFO L93 Difference]: Finished difference Result 70 states and 93 transitions. [2020-07-19 23:37:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:37:22,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-07-19 23:37:22,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:37:22,398 INFO L225 Difference]: With dead ends: 70 [2020-07-19 23:37:22,399 INFO L226 Difference]: Without dead ends: 35 [2020-07-19 23:37:22,403 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 23:37:22,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-19 23:37:22,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-07-19 23:37:22,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-19 23:37:22,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-07-19 23:37:22,446 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 26 [2020-07-19 23:37:22,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:37:22,447 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-07-19 23:37:22,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:37:22,447 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-07-19 23:37:22,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-19 23:37:22,449 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:37:22,449 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] [2020-07-19 23:37:22,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:37:22,450 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:37:22,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:37:22,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1503462707, now seen corresponding path program 1 times [2020-07-19 23:37:22,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:37:22,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773783393] [2020-07-19 23:37:22,452 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6cfb181e [2020-07-19 23:37:22,474 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-19 23:37:22,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [985252504] [2020-07-19 23:37:22,475 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3725a0be No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:37:22,546 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3725a0be issued 2 check-sat command(s) [2020-07-19 23:37:22,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:37:22,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-19 23:37:22,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:37:22,607 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 23:37:22,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773783393] [2020-07-19 23:37:22,608 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-19 23:37:22,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985252504] [2020-07-19 23:37:22,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:37:22,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 23:37:22,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487711719] [2020-07-19 23:37:22,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 23:37:22,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:37:22,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 23:37:22,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-19 23:37:22,612 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 4 states. [2020-07-19 23:37:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:37:22,708 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2020-07-19 23:37:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-19 23:37:22,709 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-07-19 23:37:22,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:37:22,712 INFO L225 Difference]: With dead ends: 67 [2020-07-19 23:37:22,712 INFO L226 Difference]: Without dead ends: 47 [2020-07-19 23:37:22,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-19 23:37:22,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-07-19 23:37:22,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2020-07-19 23:37:22,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-19 23:37:22,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-07-19 23:37:22,728 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 26 [2020-07-19 23:37:22,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:37:22,729 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-07-19 23:37:22,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 23:37:22,729 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-07-19 23:37:22,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-19 23:37:22,730 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:37:22,730 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] [2020-07-19 23:37:22,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-19 23:37:22,944 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:37:22,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:37:22,945 INFO L82 PathProgramCache]: Analyzing trace with hash -260192085, now seen corresponding path program 1 times [2020-07-19 23:37:22,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:37:22,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889598293] [2020-07-19 23:37:22,946 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6cfb181e [2020-07-19 23:37:22,967 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-19 23:37:22,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313982169] [2020-07-19 23:37:22,970 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@21b84f3d No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:37:23,051 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@21b84f3d issued 4 check-sat command(s) [2020-07-19 23:37:23,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-19 23:37:23,052 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:37:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:37:23,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:37:23,101 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 23:37:23,102 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 23:37:23,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:37:23,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:37:23 BoogieIcfgContainer [2020-07-19 23:37:23,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:37:23,390 INFO L168 Benchmark]: Toolchain (without parser) took 2264.38 ms. Allocated memory was 139.5 MB in the beginning and 234.9 MB in the end (delta: 95.4 MB). Free memory was 102.9 MB in the beginning and 205.1 MB in the end (delta: -102.2 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:23,391 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 23:37:23,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.90 ms. Allocated memory is still 139.5 MB. Free memory was 102.5 MB in the beginning and 92.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:23,399 INFO L168 Benchmark]: Boogie Preprocessor took 115.39 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 92.1 MB in the beginning and 182.5 MB in the end (delta: -90.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:23,399 INFO L168 Benchmark]: RCFGBuilder took 326.83 ms. Allocated memory is still 203.9 MB. Free memory was 182.5 MB in the beginning and 164.4 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:23,400 INFO L168 Benchmark]: TraceAbstraction took 1548.12 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 163.7 MB in the beginning and 205.1 MB in the end (delta: -41.4 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:23,408 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 267.90 ms. Allocated memory is still 139.5 MB. Free memory was 102.5 MB in the beginning and 92.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.39 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 92.1 MB in the beginning and 182.5 MB in the end (delta: -90.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 326.83 ms. Allocated memory is still 203.9 MB. Free memory was 182.5 MB in the beginning and 164.4 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1548.12 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 163.7 MB in the beginning and 205.1 MB in the end (delta: -41.4 MB). Peak memory consumption was 79.0 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 *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