/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:34:51,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:34:51,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:34:52,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 20:34:52,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:34:52,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:34:52,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:34:52,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:34:52,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:34:52,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:34:52,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:34:52,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:34:52,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:34:52,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:34:52,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:34:52,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:34:52,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 20:34:52,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:34:52,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:34:52,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:34:52,117 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:34:52,131 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:34:52,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:34:52,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:34:52,133 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:34:52,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:34:52,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:34:52,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:34:52,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:34:52,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:34:52,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:34:52,134 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:34:52,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:34:52,134 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:34:52,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:34:52,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:34:52,135 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:34:52,135 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:34:52,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:34:52,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:34:52,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:34:52,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:34:52,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:34:52,136 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:34:52,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:34:52,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:34:52,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:34:52,577 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:34:52,577 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:34:52,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test09.c [2020-10-23 20:34:52,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f973412/6704dbb327b04dfc85401df54c21fbe1/FLAG2a96d14f5 [2020-10-23 20:34:53,199 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:34:53,199 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test09.c [2020-10-23 20:34:53,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f973412/6704dbb327b04dfc85401df54c21fbe1/FLAG2a96d14f5 [2020-10-23 20:34:53,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f973412/6704dbb327b04dfc85401df54c21fbe1 [2020-10-23 20:34:53,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:34:53,587 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:34:53,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:34:53,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:34:53,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:34:53,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:53" (1/1) ... [2020-10-23 20:34:53,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226960b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:53, skipping insertion in model container [2020-10-23 20:34:53,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:53" (1/1) ... [2020-10-23 20:34:53,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:34:53,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:34:53,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:34:53,840 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:34:53,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:34:53,871 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:34:53,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:53 WrapperNode [2020-10-23 20:34:53,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:34:53,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:34:53,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:34:53,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:34:53,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:53" (1/1) ... [2020-10-23 20:34:53,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:53" (1/1) ... [2020-10-23 20:34:53,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:53" (1/1) ... [2020-10-23 20:34:53,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:53" (1/1) ... [2020-10-23 20:34:53,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:53" (1/1) ... [2020-10-23 20:34:53,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:53" (1/1) ... [2020-10-23 20:34:53,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:53" (1/1) ... [2020-10-23 20:34:53,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:34:53,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:34:53,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:34:53,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:34:53,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:53" (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 20:34:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:34:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:34:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:34:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-23 20:34:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:34:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:34:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:34:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:34:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:34:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-23 20:34:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:34:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:34:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:34:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:34:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:34:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:34:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:34:54,258 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:34:54,258 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 20:34:54,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:54 BoogieIcfgContainer [2020-10-23 20:34:54,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:34:54,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:34:54,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:34:54,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:34:54,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:34:53" (1/3) ... [2020-10-23 20:34:54,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639e9759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:54, skipping insertion in model container [2020-10-23 20:34:54,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:53" (2/3) ... [2020-10-23 20:34:54,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639e9759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:54, skipping insertion in model container [2020-10-23 20:34:54,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:54" (3/3) ... [2020-10-23 20:34:54,287 INFO L111 eAbstractionObserver]: Analyzing ICFG test09.c [2020-10-23 20:34:54,300 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:34:54,306 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:34:54,323 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:34:54,347 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:34:54,348 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:34:54,348 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:34:54,348 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:34:54,348 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:34:54,348 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:34:54,348 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:34:54,349 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:34:54,365 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-10-23 20:34:54,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-23 20:34:54,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:54,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:54,377 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:54,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:54,384 INFO L82 PathProgramCache]: Analyzing trace with hash -933799014, now seen corresponding path program 1 times [2020-10-23 20:34:54,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:54,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756749988] [2020-10-23 20:34:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:54,491 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:55,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:55,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 20:34:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:55,416 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 20:34:55,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756749988] [2020-10-23 20:34:55,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:55,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 20:34:55,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399538936] [2020-10-23 20:34:55,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 20:34:55,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:55,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 20:34:55,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:34:55,444 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 15 states. [2020-10-23 20:34:55,983 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-23 20:34:56,162 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-23 20:34:56,318 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2020-10-23 20:34:56,542 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2020-10-23 20:34:56,769 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2020-10-23 20:34:56,957 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2020-10-23 20:34:57,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:57,154 INFO L93 Difference]: Finished difference Result 79 states and 81 transitions. [2020-10-23 20:34:57,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 20:34:57,156 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 48 [2020-10-23 20:34:57,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:57,165 INFO L225 Difference]: With dead ends: 79 [2020-10-23 20:34:57,165 INFO L226 Difference]: Without dead ends: 50 [2020-10-23 20:34:57,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2020-10-23 20:34:57,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-23 20:34:57,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-23 20:34:57,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-23 20:34:57,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 49 transitions. [2020-10-23 20:34:57,213 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 49 transitions. Word has length 48 [2020-10-23 20:34:57,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:57,214 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 49 transitions. [2020-10-23 20:34:57,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 20:34:57,214 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 49 transitions. [2020-10-23 20:34:57,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-23 20:34:57,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:57,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:57,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:34:57,217 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:57,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:57,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1785220583, now seen corresponding path program 1 times [2020-10-23 20:34:57,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:57,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880131296] [2020-10-23 20:34:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:57,222 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:57,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:57,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 20:34:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:57,425 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 20:34:57,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880131296] [2020-10-23 20:34:57,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:57,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:34:57,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173538061] [2020-10-23 20:34:57,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:34:57,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:57,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:34:57,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:34:57,434 INFO L87 Difference]: Start difference. First operand 50 states and 49 transitions. Second operand 7 states. [2020-10-23 20:34:57,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:57,625 INFO L93 Difference]: Finished difference Result 50 states and 49 transitions. [2020-10-23 20:34:57,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 20:34:57,625 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2020-10-23 20:34:57,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:57,628 INFO L225 Difference]: With dead ends: 50 [2020-10-23 20:34:57,628 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 20:34:57,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:34:57,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 20:34:57,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 20:34:57,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 20:34:57,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 20:34:57,632 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2020-10-23 20:34:57,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:57,632 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 20:34:57,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:34:57,633 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 20:34:57,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 20:34:57,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:34:57,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 20:34:58,070 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 37 [2020-10-23 20:34:58,249 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2020-10-23 20:34:58,551 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2020-10-23 20:34:59,002 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2020-10-23 20:34:59,155 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 45 [2020-10-23 20:34:59,322 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 47 [2020-10-23 20:34:59,457 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-23 20:34:59,569 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2020-10-23 20:34:59,691 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2020-10-23 20:34:59,761 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-10-23 20:34:59,762 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-23 20:34:59,762 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-10-23 20:34:59,762 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-10-23 20:34:59,762 INFO L270 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-10-23 20:34:59,763 INFO L270 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-10-23 20:34:59,763 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-10-23 20:34:59,763 INFO L270 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-10-23 20:34:59,763 INFO L270 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-10-23 20:34:59,763 INFO L270 CegarLoopResult]: At program point L3-5(line 3) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-10-23 20:34:59,763 INFO L270 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-23 20:34:59,764 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= ~p2~0.offset |old(~p2~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= ~p1~0.offset |old(~p1~0.offset)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~p2~0.base |old(~p2~0.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= ~p1~0.base |old(~p1~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-10-23 20:34:59,764 INFO L270 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-23 20:34:59,764 INFO L270 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-10-23 20:34:59,764 INFO L270 CegarLoopResult]: At program point L6-1(line 6) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-10-23 20:34:59,765 INFO L270 CegarLoopResult]: At program point L6-2(line 6) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-23 20:34:59,765 INFO L270 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-10-23 20:34:59,765 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-23 20:34:59,765 INFO L270 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-10-23 20:34:59,765 INFO L270 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-23 20:34:59,765 INFO L270 CegarLoopResult]: At program point fFINAL(lines 9 17) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (<= f_~v~0 1) (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-10-23 20:34:59,766 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (or (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#a~0.offset| |old(~p1~0.offset)|)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1)) (= |~#a~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~p2~0.base |~#b~0.base|))) [2020-10-23 20:34:59,766 INFO L270 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (<= f_~v~0 1) (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-10-23 20:34:59,766 INFO L270 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-10-23 20:34:59,777 INFO L270 CegarLoopResult]: At program point L11(lines 11 16) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-10-23 20:34:59,778 INFO L270 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (= |f_#t~mem7| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|)) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-10-23 20:34:59,778 INFO L270 CegarLoopResult]: At program point L10-1(line 10) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (and (= |f_#t~mem7| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|)) (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) |f_#t~mem8|) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-10-23 20:34:59,779 INFO L270 CegarLoopResult]: At program point L10-2(line 10) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (= |f_#t~mem7| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|)) (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) |f_#t~mem8|) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (= |f_#t~mem9| |f_#t~mem7|)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-10-23 20:34:59,779 INFO L270 CegarLoopResult]: At program point fEXIT(lines 9 17) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (<= f_~v~0 1) (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-10-23 20:34:59,779 INFO L270 CegarLoopResult]: At program point L10-3(line 10) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (= |f_#t~mem7| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|)) (<= f_~v~0 1) (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) |f_#t~mem8|) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (= |f_#t~mem9| |f_#t~mem7|)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-10-23 20:34:59,780 INFO L270 CegarLoopResult]: At program point L10-4(line 10) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-10-23 20:34:59,780 INFO L270 CegarLoopResult]: At program point fENTRY(lines 9 17) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-10-23 20:34:59,780 INFO L270 CegarLoopResult]: At program point L10-5(line 10) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-10-23 20:34:59,780 INFO L270 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-23 20:34:59,780 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-23 20:34:59,780 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 20:34:59,781 INFO L270 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-23 20:34:59,781 INFO L270 CegarLoopResult]: At program point L33(lines 33 35) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (= |~#b~0.base| |~#a~0.base|) (and (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) 1000) (= ~p2~0.base ~p1~0.base) (= |main_#t~mem13| 1000) (= ~p2~0.offset ~p1~0.offset))) [2020-10-23 20:34:59,781 INFO L270 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1))) [2020-10-23 20:34:59,781 INFO L270 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,782 INFO L277 CegarLoopResult]: At program point L33-2(line 33) the Hoare annotation is: true [2020-10-23 20:34:59,783 INFO L270 CegarLoopResult]: At program point L31-1(line 31) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) 1000) (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,783 INFO L270 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,783 INFO L270 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,783 INFO L270 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,784 INFO L270 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,784 INFO L270 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,785 INFO L270 CegarLoopResult]: At program point L29-3(line 29) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,785 INFO L270 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,785 INFO L270 CegarLoopResult]: At program point L27-2(line 27) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,785 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 19 41) the Hoare annotation is: true [2020-10-23 20:34:59,785 INFO L270 CegarLoopResult]: At program point L27-3(line 27) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,785 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 19 41) the Hoare annotation is: true [2020-10-23 20:34:59,786 INFO L270 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1))) [2020-10-23 20:34:59,786 INFO L270 CegarLoopResult]: At program point L34(lines 19 41) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1))) [2020-10-23 20:34:59,787 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 19 41) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.base |old(~p2~0.base)|) (= |old(~p2~0.offset)| ~p2~0.offset) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,787 INFO L270 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,787 INFO L270 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,787 INFO L270 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#a~0.base| ~p1~0.base) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-23 20:34:59,787 INFO L270 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1))) [2020-10-23 20:34:59,787 INFO L277 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: true [2020-10-23 20:34:59,812 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:59,813 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:59,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:34:59 BoogieIcfgContainer [2020-10-23 20:34:59,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:34:59,824 INFO L168 Benchmark]: Toolchain (without parser) took 6238.59 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 126.9 MB in the beginning and 197.5 MB in the end (delta: -70.6 MB). Peak memory consumption was 121.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:59,825 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:34:59,826 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.20 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:59,827 INFO L168 Benchmark]: Boogie Preprocessor took 35.09 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:59,828 INFO L168 Benchmark]: RCFGBuilder took 351.59 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 98.5 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:59,830 INFO L168 Benchmark]: TraceAbstraction took 5540.21 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 133.9 MB in the beginning and 197.5 MB in the end (delta: -63.6 MB). Peak memory consumption was 126.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:59,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 278.20 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.09 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 351.59 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 98.5 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5540.21 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 133.9 MB in the beginning and 197.5 MB in the end (delta: -63.6 MB). Peak memory consumption was 126.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 19]: Loop Invariant Derived loop invariant: a == b || !(\valid[a] == 1) - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 9]: Procedure Contract for f [2020-10-23 20:34:59,866 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:59,866 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:59,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:59,868 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure f: ((((((!(\valid[a] == 1) || !(\old(p1) == a)) || !(p2 == b)) || (((1 <= v && v <= 1) && p2 == p1) && p2 == p1)) || !(\old(p1) == a)) || !(b == p2)) || b == a) || !(unknown-#memory_int-unknown[a := unknown-#memory_int-unknown[a][a := 5]][p2][p2] == 1) - ProcedureContractResult [Line: 19]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 75 SDtfs, 153 SDslu, 272 SDs, 0 SdLazy, 340 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 61 LocationsWithAnnotation, 65 PreInvPairs, 79 NumberOfFragments, 1457 HoareAnnotationTreeSize, 65 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 61 FomulaSimplificationsInter, 1342 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...