/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.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/ifncompf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 21:44:54,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:44:54,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:44:54,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:44:54,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:44:54,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:44:54,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:44:54,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:44:54,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:44:54,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:44:54,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:44:54,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:44:54,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:44:54,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:44:54,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:44:54,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:44:54,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:44:54,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:44:54,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:44:54,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:44:54,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:44:54,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:44:54,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:44:54,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:44:54,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 21:44:54,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 21:44:54,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 21:44:54,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 21:44:54,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 21:44:54,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 21:44:54,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 21:44:54,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 21:44:54,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 21:44:54,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 21:44:54,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 21:44:54,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 21:44:54,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 21:44:54,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 21:44:54,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:44:54,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:44:54,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:44:54,098 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 21:44:54,112 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:44:54,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:44:54,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:44:54,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:44:54,114 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:44:54,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:44:54,114 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:44:54,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:44:54,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:44:54,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:44:54,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:44:54,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:44:54,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:44:54,116 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:44:54,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:44:54,116 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:44:54,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:44:54,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:44:54,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:44:54,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:44:54,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:44:54,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:44:54,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:44:54,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:44:54,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:44:54,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:44:54,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:44:54,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:44:54,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:44:54,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:44:54,413 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:44:54,425 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:44:54,428 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:44:54,430 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:44:54,431 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:44:54,431 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ifncompf.c [2020-07-19 21:44:54,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8143bea23/b9249e2b01b647f89a869b32b8d3348d/FLAGb234a06d6 [2020-07-19 21:44:55,010 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:44:55,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ifncompf.c [2020-07-19 21:44:55,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8143bea23/b9249e2b01b647f89a869b32b8d3348d/FLAGb234a06d6 [2020-07-19 21:44:55,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8143bea23/b9249e2b01b647f89a869b32b8d3348d [2020-07-19 21:44:55,364 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:44:55,367 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:44:55,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:44:55,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:44:55,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:44:55,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:44:55" (1/1) ... [2020-07-19 21:44:55,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5957ebad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:44:55, skipping insertion in model container [2020-07-19 21:44:55,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:44:55" (1/1) ... [2020-07-19 21:44:55,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:44:55,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:44:55,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:44:55,644 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:44:55,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:44:55,686 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:44:55,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:44:55 WrapperNode [2020-07-19 21:44:55,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:44:55,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:44:55,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:44:55,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:44:55,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:44:55" (1/1) ... [2020-07-19 21:44:55,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:44:55" (1/1) ... [2020-07-19 21:44:55,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:44:55" (1/1) ... [2020-07-19 21:44:55,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:44:55" (1/1) ... [2020-07-19 21:44:55,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:44:55" (1/1) ... [2020-07-19 21:44:55,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:44:55" (1/1) ... [2020-07-19 21:44:55,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:44:55" (1/1) ... [2020-07-19 21:44:55,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:44:55,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:44:55,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:44:55,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:44:55,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:44:55" (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 21:44:55,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:44:55,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:44:55,897 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-19 21:44:55,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-19 21:44:55,897 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:44:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:44:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-19 21:44:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-19 21:44:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-19 21:44:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:44:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 21:44:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:44:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 21:44:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 21:44:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 21:44:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:44:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:44:55,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 21:44:56,214 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:44:56,215 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-19 21:44:56,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:44:56 BoogieIcfgContainer [2020-07-19 21:44:56,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:44:56,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:44:56,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:44:56,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:44:56,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:44:55" (1/3) ... [2020-07-19 21:44:56,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3201652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:44:56, skipping insertion in model container [2020-07-19 21:44:56,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:44:55" (2/3) ... [2020-07-19 21:44:56,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3201652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:44:56, skipping insertion in model container [2020-07-19 21:44:56,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:44:56" (3/3) ... [2020-07-19 21:44:56,234 INFO L109 eAbstractionObserver]: Analyzing ICFG ifncompf.c [2020-07-19 21:44:56,251 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:44:56,260 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:44:56,277 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:44:56,305 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:44:56,305 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:44:56,306 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:44:56,306 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:44:56,306 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:44:56,308 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:44:56,308 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:44:56,308 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:44:56,338 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-19 21:44:56,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-19 21:44:56,345 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:44:56,347 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 21:44:56,347 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:44:56,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:44:56,354 INFO L82 PathProgramCache]: Analyzing trace with hash -794599326, now seen corresponding path program 1 times [2020-07-19 21:44:56,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:44:56,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910673630] [2020-07-19 21:44:56,364 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1a5a7bc1 [2020-07-19 21:44:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:44:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:44:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:44:56,568 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 21:44:56,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910673630] [2020-07-19 21:44:56,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:44:56,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 21:44:56,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824390990] [2020-07-19 21:44:56,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:44:56,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:44:56,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:44:56,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 21:44:56,595 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-07-19 21:44:56,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:44:56,761 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2020-07-19 21:44:56,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:44:56,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-19 21:44:56,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:44:56,772 INFO L225 Difference]: With dead ends: 70 [2020-07-19 21:44:56,772 INFO L226 Difference]: Without dead ends: 35 [2020-07-19 21:44:56,778 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 21:44:56,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-19 21:44:56,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-07-19 21:44:56,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-19 21:44:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2020-07-19 21:44:56,825 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 24 [2020-07-19 21:44:56,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:44:56,826 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2020-07-19 21:44:56,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:44:56,827 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2020-07-19 21:44:56,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-19 21:44:56,828 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:44:56,829 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 21:44:56,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:44:56,829 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:44:56,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:44:56,830 INFO L82 PathProgramCache]: Analyzing trace with hash -544938994, now seen corresponding path program 1 times [2020-07-19 21:44:56,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:44:56,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571310502] [2020-07-19 21:44:56,831 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1a5a7bc1 [2020-07-19 21:44:56,868 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-19 21:44:56,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116816590] [2020-07-19 21:44:56,869 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1a5a7bc1 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 21:44:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:44:56,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-19 21:44:56,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:44:57,023 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 21:44:57,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571310502] [2020-07-19 21:44:57,024 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-19 21:44:57,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116816590] [2020-07-19 21:44:57,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:44:57,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 21:44:57,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220436256] [2020-07-19 21:44:57,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 21:44:57,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:44:57,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 21:44:57,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-19 21:44:57,028 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 4 states. [2020-07-19 21:44:57,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:44:57,147 INFO L93 Difference]: Finished difference Result 67 states and 84 transitions. [2020-07-19 21:44:57,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-19 21:44:57,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-19 21:44:57,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:44:57,151 INFO L225 Difference]: With dead ends: 67 [2020-07-19 21:44:57,151 INFO L226 Difference]: Without dead ends: 48 [2020-07-19 21:44:57,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 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 21:44:57,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-19 21:44:57,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 38. [2020-07-19 21:44:57,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-19 21:44:57,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2020-07-19 21:44:57,168 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 24 [2020-07-19 21:44:57,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:44:57,169 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2020-07-19 21:44:57,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 21:44:57,169 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2020-07-19 21:44:57,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-19 21:44:57,171 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:44:57,171 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] [2020-07-19 21:44:57,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-19 21:44:57,385 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:44:57,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:44:57,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1796917477, now seen corresponding path program 1 times [2020-07-19 21:44:57,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:44:57,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118149777] [2020-07-19 21:44:57,387 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1a5a7bc1 [2020-07-19 21:44:57,430 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-19 21:44:57,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1175868323] [2020-07-19 21:44:57,431 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1a5a7bc1 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 21:44:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:44:57,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-19 21:44:57,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:44:57,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-19 21:44:57,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118149777] [2020-07-19 21:44:57,535 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-19 21:44:57,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175868323] [2020-07-19 21:44:57,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:44:57,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 21:44:57,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948296208] [2020-07-19 21:44:57,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:44:57,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:44:57,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:44:57,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 21:44:57,539 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 3 states. [2020-07-19 21:44:57,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:44:57,655 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2020-07-19 21:44:57,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:44:57,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-07-19 21:44:57,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:44:57,657 INFO L225 Difference]: With dead ends: 72 [2020-07-19 21:44:57,658 INFO L226 Difference]: Without dead ends: 48 [2020-07-19 21:44:57,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 21:44:57,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-19 21:44:57,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 41. [2020-07-19 21:44:57,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-19 21:44:57,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2020-07-19 21:44:57,667 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 33 [2020-07-19 21:44:57,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:44:57,668 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2020-07-19 21:44:57,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:44:57,668 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2020-07-19 21:44:57,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-19 21:44:57,669 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:44:57,669 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] [2020-07-19 21:44:57,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:44:57,879 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:44:57,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:44:57,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1817991449, now seen corresponding path program 1 times [2020-07-19 21:44:57,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:44:57,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130645027] [2020-07-19 21:44:57,881 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1a5a7bc1 [2020-07-19 21:44:57,923 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-19 21:44:57,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2121114950] [2020-07-19 21:44:57,924 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1a5a7bc1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:44:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:44:58,001 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:44:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:44:58,020 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:44:58,072 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 21:44:58,073 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 21:44:58,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:44:58,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:44:58 BoogieIcfgContainer [2020-07-19 21:44:58,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 21:44:58,345 INFO L168 Benchmark]: Toolchain (without parser) took 2978.20 ms. Allocated memory was 142.6 MB in the beginning and 228.1 MB in the end (delta: 85.5 MB). Free memory was 100.0 MB in the beginning and 175.7 MB in the end (delta: -75.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-19 21:44:58,346 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-19 21:44:58,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.41 ms. Allocated memory is still 142.6 MB. Free memory was 99.6 MB in the beginning and 88.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-19 21:44:58,348 INFO L168 Benchmark]: Boogie Preprocessor took 141.00 ms. Allocated memory was 142.6 MB in the beginning and 200.3 MB in the end (delta: 57.7 MB). Free memory was 88.9 MB in the beginning and 177.5 MB in the end (delta: -88.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-19 21:44:58,349 INFO L168 Benchmark]: RCFGBuilder took 392.85 ms. Allocated memory is still 200.3 MB. Free memory was 177.5 MB in the beginning and 158.8 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2020-07-19 21:44:58,350 INFO L168 Benchmark]: TraceAbstraction took 2119.02 ms. Allocated memory was 200.3 MB in the beginning and 228.1 MB in the end (delta: 27.8 MB). Free memory was 158.1 MB in the beginning and 175.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-19 21:44:58,354 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 319.41 ms. Allocated memory is still 142.6 MB. Free memory was 99.6 MB in the beginning and 88.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.00 ms. Allocated memory was 142.6 MB in the beginning and 200.3 MB in the end (delta: 57.7 MB). Free memory was 88.9 MB in the beginning and 177.5 MB in the end (delta: -88.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 392.85 ms. Allocated memory is still 200.3 MB. Free memory was 177.5 MB in the beginning and 158.8 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2119.02 ms. Allocated memory was 200.3 MB in the beginning and 228.1 MB in the end (delta: 27.8 MB). Free memory was 158.1 MB in the beginning and 175.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 10.2 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); [L27] long long *b = malloc(sizeof(long long)*N); [L28] long long *c = malloc(sizeof(long long)*N); [L30] i=0 VAL [\old(N)=0, a={-2:0}, b={-3:0}, c={-1:0}, i=0, malloc(sizeof(long long)*N)={-3:0}, malloc(sizeof(long long)*N)={-2:0}, malloc(sizeof(long long)*N)={-1:0}, N=1] [L30] COND TRUE i