/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 06:35:38,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 06:35:38,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 06:35:38,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 06:35:38,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 06:35:38,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 06:35:38,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 06:35:38,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 06:35:38,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 06:35:38,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 06:35:38,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 06:35:38,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 06:35:38,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 06:35:38,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 06:35:38,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 06:35:38,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 06:35:38,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 06:35:38,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 06:35:38,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 06:35:38,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 06:35:38,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 06:35:38,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 06:35:38,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 06:35:38,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 06:35:38,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 06:35:38,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 06:35:38,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 06:35:38,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 06:35:38,603 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 06:35:38,628 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 06:35:38,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 06:35:38,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 06:35:38,634 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 06:35:38,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 06:35:38,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 06:35:38,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 06:35:38,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 06:35:38,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 06:35:38,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 06:35:38,636 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 06:35:38,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 06:35:38,637 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 06:35:38,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 06:35:38,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 06:35:38,639 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 06:35:38,639 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 06:35:38,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 06:35:38,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:35:38,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 06:35:38,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 06:35:38,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 06:35:38,640 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 06:35:39,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 06:35:39,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 06:35:39,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 06:35:39,092 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 06:35:39,093 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 06:35:39,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-11-07 06:35:39,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7343f10/79b7466de42e4ec5a6a506d41dbd70e6/FLAGab974b1f2 [2020-11-07 06:35:39,901 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 06:35:39,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-11-07 06:35:39,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7343f10/79b7466de42e4ec5a6a506d41dbd70e6/FLAGab974b1f2 [2020-11-07 06:35:40,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7343f10/79b7466de42e4ec5a6a506d41dbd70e6 [2020-11-07 06:35:40,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 06:35:40,302 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 06:35:40,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 06:35:40,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 06:35:40,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 06:35:40,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:35:40" (1/1) ... [2020-11-07 06:35:40,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15457b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:40, skipping insertion in model container [2020-11-07 06:35:40,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:35:40" (1/1) ... [2020-11-07 06:35:40,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 06:35:40,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 06:35:40,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:35:40,619 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 06:35:40,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:35:40,667 INFO L208 MainTranslator]: Completed translation [2020-11-07 06:35:40,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:40 WrapperNode [2020-11-07 06:35:40,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 06:35:40,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 06:35:40,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 06:35:40,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 06:35:40,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:40" (1/1) ... [2020-11-07 06:35:40,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:40" (1/1) ... [2020-11-07 06:35:40,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:40" (1/1) ... [2020-11-07 06:35:40,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:40" (1/1) ... [2020-11-07 06:35:40,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:40" (1/1) ... [2020-11-07 06:35:40,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:40" (1/1) ... [2020-11-07 06:35:40,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:40" (1/1) ... [2020-11-07 06:35:40,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 06:35:40,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 06:35:40,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 06:35:40,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 06:35:40,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:40" (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 [2020-11-07 06:35:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 06:35:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 06:35:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 06:35:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 06:35:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2020-11-07 06:35:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 06:35:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 06:35:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 06:35:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 06:35:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 06:35:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 06:35:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 06:35:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 06:35:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2020-11-07 06:35:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 06:35:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 06:35:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 06:35:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 06:35:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 06:35:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 06:35:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 06:35:41,185 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 06:35:41,186 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 06:35:41,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:41 BoogieIcfgContainer [2020-11-07 06:35:41,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 06:35:41,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 06:35:41,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 06:35:41,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 06:35:41,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:35:40" (1/3) ... [2020-11-07 06:35:41,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a282913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:41, skipping insertion in model container [2020-11-07 06:35:41,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:40" (2/3) ... [2020-11-07 06:35:41,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a282913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:41, skipping insertion in model container [2020-11-07 06:35:41,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:41" (3/3) ... [2020-11-07 06:35:41,204 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2020-11-07 06:35:41,221 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 06:35:41,234 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 06:35:41,271 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 06:35:41,315 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 06:35:41,315 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 06:35:41,315 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 06:35:41,315 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 06:35:41,315 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 06:35:41,315 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 06:35:41,316 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 06:35:41,316 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 06:35:41,331 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-11-07 06:35:41,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-07 06:35:41,341 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:35:41,342 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] [2020-11-07 06:35:41,342 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:35:41,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:35:41,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1608563020, now seen corresponding path program 1 times [2020-11-07 06:35:41,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:35:41,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477298501] [2020-11-07 06:35:41,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:35:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:41,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:35:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:41,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:35:41,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477298501] [2020-11-07 06:35:41,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:35:41,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 06:35:41,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342067465] [2020-11-07 06:35:41,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 06:35:41,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:35:41,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 06:35:41,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-11-07 06:35:41,933 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 10 states. [2020-11-07 06:35:42,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:35:42,535 INFO L93 Difference]: Finished difference Result 88 states and 100 transitions. [2020-11-07 06:35:42,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 06:35:42,537 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-11-07 06:35:42,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:35:42,545 INFO L225 Difference]: With dead ends: 88 [2020-11-07 06:35:42,546 INFO L226 Difference]: Without dead ends: 43 [2020-11-07 06:35:42,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-11-07 06:35:42,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-11-07 06:35:42,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2020-11-07 06:35:42,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-07 06:35:42,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2020-11-07 06:35:42,607 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 27 [2020-11-07 06:35:42,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:35:42,608 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2020-11-07 06:35:42,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 06:35:42,609 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2020-11-07 06:35:42,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-07 06:35:42,610 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:35:42,611 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-11-07 06:35:42,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 06:35:42,611 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:35:42,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:35:42,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1912813742, now seen corresponding path program 1 times [2020-11-07 06:35:42,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:35:42,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376817379] [2020-11-07 06:35:42,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:35:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:42,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:35:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:42,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-07 06:35:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:42,994 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:35:42,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376817379] [2020-11-07 06:35:42,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:35:42,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-11-07 06:35:42,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744629971] [2020-11-07 06:35:42,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-07 06:35:42,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:35:43,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-07 06:35:43,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-11-07 06:35:43,005 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 12 states. [2020-11-07 06:35:43,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:35:43,626 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2020-11-07 06:35:43,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 06:35:43,627 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2020-11-07 06:35:43,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:35:43,630 INFO L225 Difference]: With dead ends: 57 [2020-11-07 06:35:43,630 INFO L226 Difference]: Without dead ends: 53 [2020-11-07 06:35:43,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2020-11-07 06:35:43,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-07 06:35:43,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2020-11-07 06:35:43,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-07 06:35:43,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2020-11-07 06:35:43,664 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 37 [2020-11-07 06:35:43,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:35:43,665 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2020-11-07 06:35:43,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-07 06:35:43,666 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2020-11-07 06:35:43,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-07 06:35:43,671 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:35:43,672 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:35:43,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 06:35:43,672 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:35:43,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:35:43,675 INFO L82 PathProgramCache]: Analyzing trace with hash -935623208, now seen corresponding path program 2 times [2020-11-07 06:35:43,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:35:43,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135424913] [2020-11-07 06:35:43,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:35:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:43,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:35:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:43,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-07 06:35:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:43,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:35:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:43,921 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-07 06:35:43,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135424913] [2020-11-07 06:35:43,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:35:43,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-11-07 06:35:43,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678654187] [2020-11-07 06:35:43,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 06:35:43,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:35:43,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 06:35:43,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-11-07 06:35:43,925 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 13 states. [2020-11-07 06:35:44,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:35:44,533 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-11-07 06:35:44,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 06:35:44,533 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 47 [2020-11-07 06:35:44,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:35:44,535 INFO L225 Difference]: With dead ends: 50 [2020-11-07 06:35:44,535 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 06:35:44,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2020-11-07 06:35:44,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 06:35:44,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 06:35:44,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 06:35:44,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 06:35:44,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2020-11-07 06:35:44,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:35:44,537 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 06:35:44,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 06:35:44,537 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 06:35:44,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 06:35:44,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 06:35:44,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 06:35:45,624 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: true [2020-11-07 06:35:45,624 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-11-07 06:35:45,624 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-11-07 06:35:45,624 INFO L269 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-11-07 06:35:45,624 INFO L269 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-11-07 06:35:45,625 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2020-11-07 06:35:45,625 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 06:35:45,625 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 06:35:45,626 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-11-07 06:35:45,626 INFO L269 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-11-07 06:35:45,626 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-11-07 06:35:45,626 INFO L269 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-11-07 06:35:45,626 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= ~tmp~0.base |old(~tmp~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-11-07 06:35:45,626 INFO L269 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-11-07 06:35:45,627 INFO L269 CegarLoopResult]: At program point L12-4(line 12) the Hoare annotation is: true [2020-11-07 06:35:45,627 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 06:35:45,628 INFO L262 CegarLoopResult]: At program point L32(lines 29 33) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (and (= glob2_~pathbuf.offset 0) (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base) (= ~tmp~0.base glob2_~pathbuf.base)) (not (<= 4 ~tmp~0.offset))) [2020-11-07 06:35:45,628 INFO L262 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (and (= glob2_~pathbuf.offset 0) (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base) (= ~tmp~0.base glob2_~pathbuf.base)) (not (<= 4 ~tmp~0.offset))) [2020-11-07 06:35:45,628 INFO L269 CegarLoopResult]: At program point glob2ENTRY(lines 25 36) the Hoare annotation is: true [2020-11-07 06:35:45,628 INFO L262 CegarLoopResult]: At program point L31-1(line 31) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (and (= glob2_~pathbuf.offset 0) (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base) (= ~tmp~0.base glob2_~pathbuf.base)) (not (<= 4 ~tmp~0.offset))) [2020-11-07 06:35:45,628 INFO L262 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (and (= glob2_~pathbuf.offset 0) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2020-11-07 06:35:45,628 INFO L262 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (and (= glob2_~pathbuf.offset 0) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~pathbuf.base)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2020-11-07 06:35:45,629 INFO L262 CegarLoopResult]: At program point L29-3(line 29) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (and (= glob2_~pathbuf.offset 0) (<= glob2_~p~0.offset ~tmp~0.offset) (= |glob2_#t~post3.base| ~tmp~0.base) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base) (= ~tmp~0.base glob2_~pathbuf.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2020-11-07 06:35:45,629 INFO L262 CegarLoopResult]: At program point L25(lines 25 36) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (and (= glob2_~pathbuf.offset 0) (= ~tmp~0.base glob2_~pathbuf.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2020-11-07 06:35:45,629 INFO L262 CegarLoopResult]: At program point L29-4(line 29) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (and (= glob2_~pathbuf.offset 0) (= |glob2_#t~post3.base| ~tmp~0.base) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base) (= ~tmp~0.base glob2_~pathbuf.base)) (not (<= 4 ~tmp~0.offset))) [2020-11-07 06:35:45,629 INFO L262 CegarLoopResult]: At program point L29-5(lines 29 33) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (and (= glob2_~pathbuf.offset 0) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base) (= ~tmp~0.base glob2_~pathbuf.base)) (not (<= 4 ~tmp~0.offset))) [2020-11-07 06:35:45,630 INFO L262 CegarLoopResult]: At program point L29-6(lines 29 33) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (and (= glob2_~pathbuf.offset 0) (= ~tmp~0.base glob2_~pathbuf.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2020-11-07 06:35:45,630 INFO L262 CegarLoopResult]: At program point glob2EXIT(lines 25 36) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (and (= glob2_~pathbuf.offset 0) (= ~tmp~0.base glob2_~pathbuf.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2020-11-07 06:35:45,630 INFO L262 CegarLoopResult]: At program point glob2FINAL(lines 25 36) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (and (= glob2_~pathbuf.offset 0) (= ~tmp~0.base glob2_~pathbuf.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2020-11-07 06:35:45,630 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 06:35:45,630 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 06:35:45,630 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 06:35:45,631 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 06:35:45,631 INFO L262 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0)) [2020-11-07 06:35:45,631 INFO L262 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: (let ((.cse0 (+ |main_~#pathbuf~0.offset| 4))) (and (<= main_~bound~0.offset .cse0) (<= .cse0 ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0))) [2020-11-07 06:35:45,631 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 38 49) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(~tmp~0.base)| ~tmp~0.base) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |old(#valid)| |#valid|)) [2020-11-07 06:35:45,631 INFO L262 CegarLoopResult]: At program point L46-1(line 46) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0)) [2020-11-07 06:35:45,631 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 38 49) the Hoare annotation is: true [2020-11-07 06:35:45,632 INFO L262 CegarLoopResult]: At program point L44(line 44) the Hoare annotation is: (and (<= main_~bound~0.offset (+ |main_~#pathbuf~0.offset| 4)) (= |main_~#pathbuf~0.offset| 0)) [2020-11-07 06:35:45,632 INFO L262 CegarLoopResult]: At program point L46-2(line 46) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0)) [2020-11-07 06:35:45,632 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 38 49) the Hoare annotation is: true [2020-11-07 06:35:45,634 INFO L262 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: (= |main_~#pathbuf~0.offset| 0) [2020-11-07 06:35:45,634 INFO L262 CegarLoopResult]: At program point L40-1(line 40) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0)) [2020-11-07 06:35:45,635 INFO L262 CegarLoopResult]: At program point L40-2(line 40) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0)) [2020-11-07 06:35:45,635 INFO L262 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 06:35:45,635 INFO L262 CegarLoopResult]: At program point L15(lines 15 17) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 06:35:45,635 INFO L262 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 06:35:45,635 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 14 19) the Hoare annotation is: true [2020-11-07 06:35:45,636 INFO L262 CegarLoopResult]: At program point L15-2(lines 14 19) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 06:35:45,637 INFO L262 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 14 19) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 06:35:45,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:35:45 BoogieIcfgContainer [2020-11-07 06:35:45,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 06:35:45,677 INFO L168 Benchmark]: Toolchain (without parser) took 5376.62 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 138.5 MB in the beginning and 72.8 MB in the end (delta: 65.7 MB). Peak memory consumption was 104.7 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:45,680 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 162.5 MB. Free memory was 135.0 MB in the beginning and 134.6 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 06:35:45,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.74 ms. Allocated memory is still 162.5 MB. Free memory was 138.1 MB in the beginning and 128.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:45,684 INFO L168 Benchmark]: Boogie Preprocessor took 66.80 ms. Allocated memory is still 162.5 MB. Free memory was 128.6 MB in the beginning and 127.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:45,686 INFO L168 Benchmark]: RCFGBuilder took 452.04 ms. Allocated memory is still 162.5 MB. Free memory was 127.0 MB in the beginning and 111.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:45,688 INFO L168 Benchmark]: TraceAbstraction took 4478.89 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 110.8 MB in the beginning and 72.8 MB in the end (delta: 37.9 MB). Peak memory consumption was 76.4 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:45,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 162.5 MB. Free memory was 135.0 MB in the beginning and 134.6 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 357.74 ms. Allocated memory is still 162.5 MB. Free memory was 138.1 MB in the beginning and 128.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 66.80 ms. Allocated memory is still 162.5 MB. Free memory was 128.6 MB in the beginning and 127.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 452.04 ms. Allocated memory is still 162.5 MB. Free memory was 127.0 MB in the beginning and 111.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4478.89 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 110.8 MB in the beginning and 72.8 MB in the end (delta: 37.9 MB). Peak memory consumption was 76.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((!(pathlim <= tmp) || !(tmp == pathbuf)) || !(pathbuf == 0)) || (((pathbuf == 0 && pathlim <= tmp) && tmp == p) && tmp == pathbuf)) || !(4 <= tmp) - ProcedureContractResult [Line: 12]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 25]: Procedure Contract for glob2 Derived contract for procedure glob2: (((!(pathlim <= tmp) || (pathbuf == 0 && tmp == pathbuf)) || !(tmp == pathbuf)) || !(pathbuf == 0)) || !(4 <= tmp) - ProcedureContractResult [Line: 38]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 191 SDslu, 351 SDs, 0 SdLazy, 483 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 50 LocationsWithAnnotation, 80 PreInvPairs, 114 NumberOfFragments, 534 HoareAnnotationTreeSize, 80 FomulaSimplifications, 1756 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 50 FomulaSimplificationsInter, 718 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 19302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 18/22 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...