/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/condgf.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:41:45,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:41:45,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:41:45,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:41:45,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:41:45,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:41:46,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:41:46,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:41:46,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:41:46,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:41:46,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:41:46,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:41:46,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:41:46,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:41:46,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:41:46,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:41:46,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:41:46,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:41:46,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:41:46,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:41:46,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:41:46,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:41:46,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:41:46,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:41:46,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:41:46,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:41:46,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:41:46,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:41:46,066 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 [2020-10-23 18:41:46,098 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:41:46,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:41:46,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:41:46,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:41:46,101 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:41:46,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:41:46,103 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:41:46,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:41:46,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:41:46,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:41:46,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:41:46,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:41:46,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:41:46,105 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:41:46,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:41:46,105 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:41:46,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:41:46,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:41:46,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:41:46,106 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:41:46,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:41:46,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:41:46,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:41:46,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:41:46,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:41:46,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:41:46,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:41:46,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:41:46,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:41:46,109 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:41:46,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:41:46,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:41:46,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:41:46,605 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:41:46,606 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:41:46,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condgf.c [2020-10-23 18:41:46,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6829024c3/25198c6873c04029b0722378e51dacb3/FLAGf8d4e18ce [2020-10-23 18:41:47,274 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:41:47,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condgf.c [2020-10-23 18:41:47,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6829024c3/25198c6873c04029b0722378e51dacb3/FLAGf8d4e18ce [2020-10-23 18:41:47,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6829024c3/25198c6873c04029b0722378e51dacb3 [2020-10-23 18:41:47,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:41:47,623 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:41:47,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:41:47,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:41:47,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:41:47,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:41:47" (1/1) ... [2020-10-23 18:41:47,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a79778e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:41:47, skipping insertion in model container [2020-10-23 18:41:47,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:41:47" (1/1) ... [2020-10-23 18:41:47,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:41:47,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:41:47,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:41:47,859 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:41:47,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:41:47,910 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:41:47,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:41:47 WrapperNode [2020-10-23 18:41:47,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:41:47,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:41:47,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:41:47,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:41:47,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:41:47" (1/1) ... [2020-10-23 18:41:47,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:41:47" (1/1) ... [2020-10-23 18:41:47,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:41:47" (1/1) ... [2020-10-23 18:41:47,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:41:47" (1/1) ... [2020-10-23 18:41:47,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:41:47" (1/1) ... [2020-10-23 18:41:47,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:41:47" (1/1) ... [2020-10-23 18:41:47,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:41:47" (1/1) ... [2020-10-23 18:41:47,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:41:47,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:41:47,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:41:47,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:41:47,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:41:47" (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 [2020-10-23 18:41:48,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:41:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:41:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:41:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-23 18:41:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 18:41:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:41:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:41:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:41:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:41:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:41:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-23 18:41:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 18:41:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:41:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 18:41:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:41:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 18:41:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:41:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:41:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:41:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:41:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:41:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:41:48,542 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:41:48,543 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-23 18:41:48,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:41:48 BoogieIcfgContainer [2020-10-23 18:41:48,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:41:48,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:41:48,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:41:48,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:41:48,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:41:47" (1/3) ... [2020-10-23 18:41:48,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707ae4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:41:48, skipping insertion in model container [2020-10-23 18:41:48,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:41:47" (2/3) ... [2020-10-23 18:41:48,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707ae4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:41:48, skipping insertion in model container [2020-10-23 18:41:48,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:41:48" (3/3) ... [2020-10-23 18:41:48,558 INFO L111 eAbstractionObserver]: Analyzing ICFG condgf.c [2020-10-23 18:41:48,572 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:41:48,578 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:41:48,594 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:41:48,625 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:41:48,625 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:41:48,625 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:41:48,626 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:41:48,626 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:41:48,626 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:41:48,626 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:41:48,626 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:41:48,646 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-10-23 18:41:48,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-23 18:41:48,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:41:48,654 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] [2020-10-23 18:41:48,654 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:41:48,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:41:48,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1662535376, now seen corresponding path program 1 times [2020-10-23 18:41:48,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:41:48,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651148442] [2020-10-23 18:41:48,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:41:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:41:49,023 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-10-23 18:41:49,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:41:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:41:49,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 18:41:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:41:49,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:41:49,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651148442] [2020-10-23 18:41:49,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:41:49,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:41:49,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210486819] [2020-10-23 18:41:49,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:41:49,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:41:49,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:41:49,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 18:41:49,122 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2020-10-23 18:41:49,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:41:49,342 INFO L93 Difference]: Finished difference Result 71 states and 93 transitions. [2020-10-23 18:41:49,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:41:49,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-23 18:41:49,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:41:49,371 INFO L225 Difference]: With dead ends: 71 [2020-10-23 18:41:49,371 INFO L226 Difference]: Without dead ends: 34 [2020-10-23 18:41:49,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 18:41:49,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-23 18:41:49,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-23 18:41:49,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-23 18:41:49,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-10-23 18:41:49,440 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 25 [2020-10-23 18:41:49,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:41:49,441 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-10-23 18:41:49,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:41:49,441 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-10-23 18:41:49,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-23 18:41:49,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:41:49,443 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] [2020-10-23 18:41:49,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:41:49,443 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:41:49,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:41:49,448 INFO L82 PathProgramCache]: Analyzing trace with hash 641467022, now seen corresponding path program 1 times [2020-10-23 18:41:49,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:41:49,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840075731] [2020-10-23 18:41:49,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:41:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:41:49,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:41:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:41:49,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 18:41:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:41:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:41:49,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840075731] [2020-10-23 18:41:49,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:41:49,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 18:41:49,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876659125] [2020-10-23 18:41:49,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:41:49,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:41:49,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:41:49,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:41:49,673 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 5 states. [2020-10-23 18:41:49,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:41:49,884 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2020-10-23 18:41:49,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 18:41:49,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-23 18:41:49,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:41:49,888 INFO L225 Difference]: With dead ends: 64 [2020-10-23 18:41:49,888 INFO L226 Difference]: Without dead ends: 45 [2020-10-23 18:41:49,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:41:49,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-23 18:41:49,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2020-10-23 18:41:49,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-23 18:41:49,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-10-23 18:41:49,904 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 25 [2020-10-23 18:41:49,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:41:49,905 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-10-23 18:41:49,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:41:49,905 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-10-23 18:41:49,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-23 18:41:49,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:41:49,906 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] [2020-10-23 18:41:49,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:41:49,907 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:41:49,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:41:49,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1803017237, now seen corresponding path program 1 times [2020-10-23 18:41:49,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:41:49,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928483240] [2020-10-23 18:41:49,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:41:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:41:50,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:41:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:41:50,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 18:41:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:41:50,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:41:50,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928483240] [2020-10-23 18:41:50,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397672024] [2020-10-23 18:41:50,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:41:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:41:50,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-23 18:41:50,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:41:50,560 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-23 18:41:50,561 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:41:50,581 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:41:50,581 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:41:50,581 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2020-10-23 18:41:50,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:41:50,623 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-10-23 18:41:50,624 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:41:50,633 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:41:50,634 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:41:50,634 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2020-10-23 18:41:50,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:41:50,779 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-10-23 18:41:50,780 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:41:50,790 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:41:50,794 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-23 18:41:50,794 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:31 [2020-10-23 18:41:50,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:41:50,881 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2020-10-23 18:41:50,882 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:41:50,889 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:41:50,891 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:41:50,891 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:34, output treesize:7 [2020-10-23 18:41:50,948 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:41:50,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:41:50,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2020-10-23 18:41:50,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122597705] [2020-10-23 18:41:50,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-23 18:41:50,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:41:50,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-23 18:41:50,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2020-10-23 18:41:50,952 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 17 states. [2020-10-23 18:41:52,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:41:52,532 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2020-10-23 18:41:52,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 18:41:52,533 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 32 [2020-10-23 18:41:52,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:41:52,537 INFO L225 Difference]: With dead ends: 65 [2020-10-23 18:41:52,537 INFO L226 Difference]: Without dead ends: 50 [2020-10-23 18:41:52,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2020-10-23 18:41:52,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-23 18:41:52,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2020-10-23 18:41:52,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-23 18:41:52,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2020-10-23 18:41:52,560 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 32 [2020-10-23 18:41:52,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:41:52,560 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2020-10-23 18:41:52,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-23 18:41:52,561 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2020-10-23 18:41:52,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-23 18:41:52,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:41:52,564 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] [2020-10-23 18:41:52,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-23 18:41:52,778 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:41:52,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:41:52,779 INFO L82 PathProgramCache]: Analyzing trace with hash 2098923049, now seen corresponding path program 1 times [2020-10-23 18:41:52,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:41:52,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730715045] [2020-10-23 18:41:52,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:41:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:41:52,813 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:41:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:41:52,852 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:41:52,896 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 18:41:52,896 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 18:41:52,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:41:52,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:41:52 BoogieIcfgContainer [2020-10-23 18:41:52,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:41:52,956 INFO L168 Benchmark]: Toolchain (without parser) took 5337.52 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 134.8 MB in the beginning and 87.6 MB in the end (delta: 47.2 MB). Peak memory consumption was 80.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:41:52,957 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 125.8 MB. Free memory was 100.6 MB in the beginning and 100.4 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:41:52,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.70 ms. Allocated memory is still 159.4 MB. Free memory was 134.2 MB in the beginning and 123.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:41:52,958 INFO L168 Benchmark]: Boogie Preprocessor took 50.24 ms. Allocated memory is still 159.4 MB. Free memory was 123.7 MB in the beginning and 122.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:41:52,959 INFO L168 Benchmark]: RCFGBuilder took 584.30 ms. Allocated memory is still 159.4 MB. Free memory was 121.9 MB in the beginning and 137.1 MB in the end (delta: -15.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:41:52,960 INFO L168 Benchmark]: TraceAbstraction took 4404.94 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 136.5 MB in the beginning and 87.6 MB in the end (delta: 48.9 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:41:52,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 125.8 MB. Free memory was 100.6 MB in the beginning and 100.4 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 284.70 ms. Allocated memory is still 159.4 MB. Free memory was 134.2 MB in the beginning and 123.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.24 ms. Allocated memory is still 159.4 MB. Free memory was 123.7 MB in the beginning and 122.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 584.30 ms. Allocated memory is still 159.4 MB. Free memory was 121.9 MB in the beginning and 137.1 MB in the end (delta: -15.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4404.94 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 136.5 MB in the beginning and 87.6 MB in the end (delta: 48.9 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; VAL [\old(N)=51, N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=1, sum={11:0}] [L32] COND TRUE i