/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/locks/test_locks_5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:00:03,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:00:03,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:00:03,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 18:00:03,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:00:03,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:00:03,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:00:03,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:00:03,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:00:03,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:00:03,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:00:03,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:00:03,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:00:03,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:00:03,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:00:03,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:00:03,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 18:00:03,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:00:03,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:00:03,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:00:03,538 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:00:03,569 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:00:03,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:00:03,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:00:03,577 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:00:03,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:00:03,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:00:03,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:00:03,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:00:03,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:00:03,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:00:03,580 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:00:03,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:00:03,580 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:00:03,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:00:03,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:00:03,581 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:00:03,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:00:03,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:00:03,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:00:03,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:00:03,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:00:03,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:00:03,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:00:04,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:00:04,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:00:04,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:00:04,080 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:00:04,081 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:00:04,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_5.c [2021-02-23 18:00:04,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edf513680/6f5d2292abda4fca88bbe4a054579cfe/FLAGebee298ba [2021-02-23 18:00:04,948 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:00:04,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_5.c [2021-02-23 18:00:04,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edf513680/6f5d2292abda4fca88bbe4a054579cfe/FLAGebee298ba [2021-02-23 18:00:05,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edf513680/6f5d2292abda4fca88bbe4a054579cfe [2021-02-23 18:00:05,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:00:05,288 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:00:05,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:00:05,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:00:05,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:00:05,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:00:05" (1/1) ... [2021-02-23 18:00:05,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6354cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:05, skipping insertion in model container [2021-02-23 18:00:05,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:00:05" (1/1) ... [2021-02-23 18:00:05,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:00:05,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:00:05,564 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_5.c[2207,2220] [2021-02-23 18:00:05,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:00:05,583 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:00:05,607 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_5.c[2207,2220] [2021-02-23 18:00:05,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:00:05,628 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:00:05,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:05 WrapperNode [2021-02-23 18:00:05,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:00:05,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:00:05,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:00:05,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:00:05,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:05" (1/1) ... [2021-02-23 18:00:05,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:05" (1/1) ... [2021-02-23 18:00:05,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:05" (1/1) ... [2021-02-23 18:00:05,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:05" (1/1) ... [2021-02-23 18:00:05,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:05" (1/1) ... [2021-02-23 18:00:05,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:05" (1/1) ... [2021-02-23 18:00:05,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:05" (1/1) ... [2021-02-23 18:00:05,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:00:05,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:00:05,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:00:05,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:00:05,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:05" (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 [2021-02-23 18:00:05,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:00:05,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:00:05,800 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:00:05,800 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:00:05,800 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:00:05,800 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:00:05,801 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:00:05,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:00:05,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 18:00:05,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:00:05,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:00:05,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:00:05,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:00:05,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:00:05,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:00:05,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:00:06,378 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:00:06,378 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 18:00:06,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:00:06 BoogieIcfgContainer [2021-02-23 18:00:06,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:00:06,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:00:06,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:00:06,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:00:06,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:00:05" (1/3) ... [2021-02-23 18:00:06,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efb1872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:00:06, skipping insertion in model container [2021-02-23 18:00:06,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:05" (2/3) ... [2021-02-23 18:00:06,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efb1872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:00:06, skipping insertion in model container [2021-02-23 18:00:06,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:00:06" (3/3) ... [2021-02-23 18:00:06,407 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_5.c [2021-02-23 18:00:06,423 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:00:06,428 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:00:06,448 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:00:06,475 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:00:06,475 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:00:06,475 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:00:06,475 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:00:06,476 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:00:06,476 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:00:06,476 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:00:06,476 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:00:06,495 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2021-02-23 18:00:06,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-23 18:00:06,507 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:06,508 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, 1, 1] [2021-02-23 18:00:06,508 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:06,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:06,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1676485373, now seen corresponding path program 1 times [2021-02-23 18:00:06,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:06,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685085299] [2021-02-23 18:00:06,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:06,627 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:06,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:06,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:06,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:06,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:06,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:06,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:06,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:06,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:06,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:06,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:00:06,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685085299] [2021-02-23 18:00:06,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:06,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:06,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800857572] [2021-02-23 18:00:06,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:06,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:06,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:06,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:06,942 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 4 states. [2021-02-23 18:00:07,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:07,493 INFO L93 Difference]: Finished difference Result 156 states and 207 transitions. [2021-02-23 18:00:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:07,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2021-02-23 18:00:07,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:07,524 INFO L225 Difference]: With dead ends: 156 [2021-02-23 18:00:07,524 INFO L226 Difference]: Without dead ends: 104 [2021-02-23 18:00:07,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:00:07,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-23 18:00:07,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2021-02-23 18:00:07,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-02-23 18:00:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 128 transitions. [2021-02-23 18:00:07,610 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 128 transitions. Word has length 51 [2021-02-23 18:00:07,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:07,611 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 128 transitions. [2021-02-23 18:00:07,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:07,611 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 128 transitions. [2021-02-23 18:00:07,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-23 18:00:07,614 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:07,614 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, 1, 1, 1] [2021-02-23 18:00:07,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:00:07,615 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:07,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:07,616 INFO L82 PathProgramCache]: Analyzing trace with hash 65982356, now seen corresponding path program 1 times [2021-02-23 18:00:07,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:07,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696102789] [2021-02-23 18:00:07,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:07,620 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:07,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:07,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:07,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:07,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:07,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:07,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:07,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:07,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:07,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:07,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:00:07,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1696102789] [2021-02-23 18:00:07,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:07,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:07,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679302536] [2021-02-23 18:00:07,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:07,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:07,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:07,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:07,751 INFO L87 Difference]: Start difference. First operand 102 states and 128 transitions. Second operand 4 states. [2021-02-23 18:00:08,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:08,021 INFO L93 Difference]: Finished difference Result 124 states and 156 transitions. [2021-02-23 18:00:08,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:08,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2021-02-23 18:00:08,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:08,024 INFO L225 Difference]: With dead ends: 124 [2021-02-23 18:00:08,024 INFO L226 Difference]: Without dead ends: 122 [2021-02-23 18:00:08,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:00:08,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-02-23 18:00:08,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 102. [2021-02-23 18:00:08,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-02-23 18:00:08,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2021-02-23 18:00:08,059 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 52 [2021-02-23 18:00:08,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:08,060 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2021-02-23 18:00:08,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:08,060 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2021-02-23 18:00:08,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-23 18:00:08,062 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:08,062 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, 1, 1, 1] [2021-02-23 18:00:08,063 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:00:08,063 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:08,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:08,064 INFO L82 PathProgramCache]: Analyzing trace with hash -431193335, now seen corresponding path program 1 times [2021-02-23 18:00:08,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:08,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462422994] [2021-02-23 18:00:08,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:08,067 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:08,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:08,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:08,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:08,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:08,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:08,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:08,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:08,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:08,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:08,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:00:08,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462422994] [2021-02-23 18:00:08,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:08,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:08,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390488187] [2021-02-23 18:00:08,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:08,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:08,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:08,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:08,177 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand 4 states. [2021-02-23 18:00:08,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:08,453 INFO L93 Difference]: Finished difference Result 234 states and 307 transitions. [2021-02-23 18:00:08,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:08,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2021-02-23 18:00:08,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:08,457 INFO L225 Difference]: With dead ends: 234 [2021-02-23 18:00:08,457 INFO L226 Difference]: Without dead ends: 165 [2021-02-23 18:00:08,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:00:08,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-02-23 18:00:08,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 163. [2021-02-23 18:00:08,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2021-02-23 18:00:08,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 208 transitions. [2021-02-23 18:00:08,522 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 208 transitions. Word has length 52 [2021-02-23 18:00:08,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:08,524 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 208 transitions. [2021-02-23 18:00:08,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:08,525 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 208 transitions. [2021-02-23 18:00:08,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-23 18:00:08,536 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:08,536 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, 1, 1, 1, 1] [2021-02-23 18:00:08,536 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 18:00:08,536 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:08,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:08,538 INFO L82 PathProgramCache]: Analyzing trace with hash 10712637, now seen corresponding path program 1 times [2021-02-23 18:00:08,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:08,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502755028] [2021-02-23 18:00:08,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:08,547 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:08,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:08,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:08,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:08,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:08,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:08,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:08,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:08,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:08,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:08,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:00:08,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502755028] [2021-02-23 18:00:08,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:08,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:08,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691791425] [2021-02-23 18:00:08,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:08,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:08,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:08,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:08,719 INFO L87 Difference]: Start difference. First operand 163 states and 208 transitions. Second operand 4 states. [2021-02-23 18:00:08,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:08,944 INFO L93 Difference]: Finished difference Result 199 states and 254 transitions. [2021-02-23 18:00:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:08,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-23 18:00:08,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:08,948 INFO L225 Difference]: With dead ends: 199 [2021-02-23 18:00:08,948 INFO L226 Difference]: Without dead ends: 197 [2021-02-23 18:00:08,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:00:08,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-02-23 18:00:09,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 163. [2021-02-23 18:00:09,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2021-02-23 18:00:09,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 206 transitions. [2021-02-23 18:00:09,011 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 206 transitions. Word has length 53 [2021-02-23 18:00:09,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:09,013 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 206 transitions. [2021-02-23 18:00:09,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:09,014 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 206 transitions. [2021-02-23 18:00:09,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-23 18:00:09,016 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:09,017 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, 1, 1, 1, 1] [2021-02-23 18:00:09,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 18:00:09,018 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:09,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:09,018 INFO L82 PathProgramCache]: Analyzing trace with hash -481845449, now seen corresponding path program 1 times [2021-02-23 18:00:09,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:09,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723702068] [2021-02-23 18:00:09,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:09,022 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:09,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:09,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:09,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:09,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:09,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:09,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:09,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:09,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:09,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:09,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:00:09,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723702068] [2021-02-23 18:00:09,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:09,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:09,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717050927] [2021-02-23 18:00:09,140 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:09,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:09,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:09,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:09,142 INFO L87 Difference]: Start difference. First operand 163 states and 206 transitions. Second operand 4 states. [2021-02-23 18:00:09,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:09,366 INFO L93 Difference]: Finished difference Result 411 states and 536 transitions. [2021-02-23 18:00:09,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:09,367 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-23 18:00:09,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:09,369 INFO L225 Difference]: With dead ends: 411 [2021-02-23 18:00:09,369 INFO L226 Difference]: Without dead ends: 281 [2021-02-23 18:00:09,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:00:09,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-02-23 18:00:09,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 279. [2021-02-23 18:00:09,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2021-02-23 18:00:09,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 354 transitions. [2021-02-23 18:00:09,425 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 354 transitions. Word has length 53 [2021-02-23 18:00:09,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:09,426 INFO L480 AbstractCegarLoop]: Abstraction has 279 states and 354 transitions. [2021-02-23 18:00:09,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:09,426 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 354 transitions. [2021-02-23 18:00:09,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-02-23 18:00:09,427 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:09,427 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, 1, 1, 1, 1, 1] [2021-02-23 18:00:09,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 18:00:09,427 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:09,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:09,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1702648280, now seen corresponding path program 1 times [2021-02-23 18:00:09,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:09,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851182153] [2021-02-23 18:00:09,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:09,431 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:09,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:09,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:09,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:09,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:09,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:09,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:09,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:09,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:09,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:00:09,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851182153] [2021-02-23 18:00:09,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:09,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:09,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612209978] [2021-02-23 18:00:09,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:09,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:09,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:09,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:09,500 INFO L87 Difference]: Start difference. First operand 279 states and 354 transitions. Second operand 4 states. [2021-02-23 18:00:09,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:09,744 INFO L93 Difference]: Finished difference Result 339 states and 428 transitions. [2021-02-23 18:00:09,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:09,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2021-02-23 18:00:09,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:09,747 INFO L225 Difference]: With dead ends: 339 [2021-02-23 18:00:09,747 INFO L226 Difference]: Without dead ends: 337 [2021-02-23 18:00:09,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:00:09,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-02-23 18:00:09,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 279. [2021-02-23 18:00:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2021-02-23 18:00:09,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 350 transitions. [2021-02-23 18:00:09,810 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 350 transitions. Word has length 54 [2021-02-23 18:00:09,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:09,810 INFO L480 AbstractCegarLoop]: Abstraction has 279 states and 350 transitions. [2021-02-23 18:00:09,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:09,811 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 350 transitions. [2021-02-23 18:00:09,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-02-23 18:00:09,812 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:09,812 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, 1, 1, 1, 1, 1] [2021-02-23 18:00:09,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 18:00:09,812 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:09,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:09,813 INFO L82 PathProgramCache]: Analyzing trace with hash -2052060611, now seen corresponding path program 1 times [2021-02-23 18:00:09,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:09,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837545689] [2021-02-23 18:00:09,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:09,816 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:09,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:09,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:09,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:09,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:09,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:09,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:09,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:09,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:09,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:09,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:00:09,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837545689] [2021-02-23 18:00:09,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:09,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:09,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901325980] [2021-02-23 18:00:09,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:09,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:09,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:09,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:09,880 INFO L87 Difference]: Start difference. First operand 279 states and 350 transitions. Second operand 4 states. [2021-02-23 18:00:10,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:10,172 INFO L93 Difference]: Finished difference Result 747 states and 952 transitions. [2021-02-23 18:00:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:10,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2021-02-23 18:00:10,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:10,178 INFO L225 Difference]: With dead ends: 747 [2021-02-23 18:00:10,178 INFO L226 Difference]: Without dead ends: 501 [2021-02-23 18:00:10,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:00:10,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2021-02-23 18:00:10,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 499. [2021-02-23 18:00:10,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2021-02-23 18:00:10,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 618 transitions. [2021-02-23 18:00:10,289 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 618 transitions. Word has length 54 [2021-02-23 18:00:10,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:10,290 INFO L480 AbstractCegarLoop]: Abstraction has 499 states and 618 transitions. [2021-02-23 18:00:10,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:10,290 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 618 transitions. [2021-02-23 18:00:10,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-02-23 18:00:10,291 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:10,291 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, 1, 1, 1, 1, 1, 1] [2021-02-23 18:00:10,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 18:00:10,291 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:10,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:10,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1017738513, now seen corresponding path program 1 times [2021-02-23 18:00:10,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:10,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667496401] [2021-02-23 18:00:10,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:10,296 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:10,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:10,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:10,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:10,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:10,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:10,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:10,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:10,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:10,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:10,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:00:10,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667496401] [2021-02-23 18:00:10,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:10,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:10,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366211022] [2021-02-23 18:00:10,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:10,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:10,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:10,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:10,418 INFO L87 Difference]: Start difference. First operand 499 states and 618 transitions. Second operand 4 states. [2021-02-23 18:00:10,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:10,712 INFO L93 Difference]: Finished difference Result 599 states and 732 transitions. [2021-02-23 18:00:10,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:10,713 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2021-02-23 18:00:10,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:10,717 INFO L225 Difference]: With dead ends: 599 [2021-02-23 18:00:10,717 INFO L226 Difference]: Without dead ends: 597 [2021-02-23 18:00:10,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:00:10,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2021-02-23 18:00:10,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 499. [2021-02-23 18:00:10,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2021-02-23 18:00:10,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 610 transitions. [2021-02-23 18:00:10,820 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 610 transitions. Word has length 55 [2021-02-23 18:00:10,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:10,821 INFO L480 AbstractCegarLoop]: Abstraction has 499 states and 610 transitions. [2021-02-23 18:00:10,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 610 transitions. [2021-02-23 18:00:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-02-23 18:00:10,822 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:10,822 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, 1, 1, 1, 1, 1, 1] [2021-02-23 18:00:10,822 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 18:00:10,823 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:10,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:10,823 INFO L82 PathProgramCache]: Analyzing trace with hash 810877291, now seen corresponding path program 1 times [2021-02-23 18:00:10,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:10,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268448877] [2021-02-23 18:00:10,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:10,826 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:10,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:10,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:10,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:10,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:10,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:10,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:10,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:10,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:10,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:10,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:00:10,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268448877] [2021-02-23 18:00:10,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:10,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:10,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090594719] [2021-02-23 18:00:10,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:10,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:10,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:10,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:10,881 INFO L87 Difference]: Start difference. First operand 499 states and 610 transitions. Second operand 4 states. [2021-02-23 18:00:11,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:11,228 INFO L93 Difference]: Finished difference Result 1381 states and 1699 transitions. [2021-02-23 18:00:11,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:11,229 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2021-02-23 18:00:11,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:11,232 INFO L225 Difference]: With dead ends: 1381 [2021-02-23 18:00:11,232 INFO L226 Difference]: Without dead ends: 499 [2021-02-23 18:00:11,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:00:11,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2021-02-23 18:00:11,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2021-02-23 18:00:11,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2021-02-23 18:00:11,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 578 transitions. [2021-02-23 18:00:11,337 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 578 transitions. Word has length 55 [2021-02-23 18:00:11,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:11,338 INFO L480 AbstractCegarLoop]: Abstraction has 499 states and 578 transitions. [2021-02-23 18:00:11,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:11,338 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 578 transitions. [2021-02-23 18:00:11,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-02-23 18:00:11,339 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:11,339 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, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:00:11,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 18:00:11,340 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:11,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:11,340 INFO L82 PathProgramCache]: Analyzing trace with hash -549616452, now seen corresponding path program 1 times [2021-02-23 18:00:11,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:11,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028662433] [2021-02-23 18:00:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:11,343 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:11,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:11,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:11,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:11,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:11,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:11,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:11,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:11,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:11,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:00:11,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028662433] [2021-02-23 18:00:11,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:11,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:11,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046639920] [2021-02-23 18:00:11,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:11,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:11,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:11,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:11,399 INFO L87 Difference]: Start difference. First operand 499 states and 578 transitions. Second operand 4 states. [2021-02-23 18:00:11,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:11,616 INFO L93 Difference]: Finished difference Result 499 states and 578 transitions. [2021-02-23 18:00:11,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:11,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2021-02-23 18:00:11,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:11,617 INFO L225 Difference]: With dead ends: 499 [2021-02-23 18:00:11,617 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 18:00:11,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:00:11,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 18:00:11,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 18:00:11,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 18:00:11,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 18:00:11,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2021-02-23 18:00:11,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:11,621 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 18:00:11,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:11,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 18:00:11,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 18:00:11,621 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 18:00:11,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 18:00:11,942 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 39 [2021-02-23 18:00:12,319 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-23 18:00:12,706 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 31 [2021-02-23 18:00:13,782 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2021-02-23 18:00:14,194 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2021-02-23 18:00:14,680 WARN L202 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2021-02-23 18:00:15,795 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2021-02-23 18:00:15,991 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2021-02-23 18:00:16,346 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2021-02-23 18:00:16,857 WARN L202 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2021-02-23 18:00:17,305 WARN L202 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2021-02-23 18:00:17,525 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2021-02-23 18:00:17,864 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2021-02-23 18:00:18,343 WARN L202 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2021-02-23 18:00:18,353 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 18:00:18,353 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 18:00:18,353 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 18:00:18,353 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 18:00:18,353 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 18:00:18,354 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:00:18,354 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 18:00:18,354 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 18:00:18,354 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 18:00:18,354 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-23 18:00:18,354 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 18:00:18,354 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 18:00:18,355 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:00:18,355 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:00:18,355 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:00:18,355 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 18:00:18,355 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 18:00:18,355 INFO L185 CegarLoopUtils]: At program point L93(line 93) the Hoare annotation is: false [2021-02-23 18:00:18,356 INFO L185 CegarLoopUtils]: At program point L60(line 60) the Hoare annotation is: (let ((.cse6 (= main_~p2~0 0)) (.cse4 (= main_~lk4~0 1)) (.cse5 (= main_~p3~0 0)) (.cse3 (= main_~p1~0 0)) (.cse0 (= main_~lk3~0 1)) (.cse1 (= main_~lk2~0 1)) (.cse2 (= main_~p4~0 0)) (.cse7 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse4 .cse0 .cse3 .cse6) (and .cse4 .cse5 .cse1 .cse3) (and .cse0 .cse2 .cse3 .cse6) (and .cse4 .cse5 .cse3 .cse6) (and .cse5 .cse2 .cse3 .cse6) (and .cse5 .cse1 .cse2 .cse7) (and .cse5 .cse2 .cse6 .cse7) (and .cse0 .cse2 .cse6 .cse7) (and .cse4 .cse0 .cse6 .cse7) (and .cse4 .cse0 .cse1 .cse3) (and .cse4 .cse0 .cse1 .cse7) (and .cse4 .cse5 .cse1 .cse7) (and .cse5 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse7))) [2021-02-23 18:00:18,356 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-23 18:00:18,356 INFO L192 CegarLoopUtils]: At program point L27-1(line 27) the Hoare annotation is: true [2021-02-23 18:00:18,356 INFO L192 CegarLoopUtils]: At program point L27-2(line 27) the Hoare annotation is: true [2021-02-23 18:00:18,356 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 6 95) the Hoare annotation is: true [2021-02-23 18:00:18,356 INFO L185 CegarLoopUtils]: At program point L52(line 52) the Hoare annotation is: (let ((.cse0 (= main_~lk2~0 1)) (.cse2 (= main_~p1~0 0)) (.cse3 (= main_~p2~0 0)) (.cse1 (= main_~lk1~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse0 .cse2) (and .cse3 .cse1))) [2021-02-23 18:00:18,356 INFO L192 CegarLoopUtils]: At program point L85-1(lines 26 90) the Hoare annotation is: true [2021-02-23 18:00:18,357 INFO L185 CegarLoopUtils]: At program point L77(line 77) the Hoare annotation is: (let ((.cse2 (= main_~lk5~0 1)) (.cse3 (= main_~p4~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~lk3~0 1)) (.cse4 (= main_~p5~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3 .cse2) (and .cse1 .cse4 .cse3) (and .cse0 .cse1 .cse4))) [2021-02-23 18:00:18,357 INFO L192 CegarLoopUtils]: At program point L44(line 44) the Hoare annotation is: true [2021-02-23 18:00:18,357 INFO L192 CegarLoopUtils]: At program point L11(line 11) the Hoare annotation is: true [2021-02-23 18:00:18,357 INFO L192 CegarLoopUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2021-02-23 18:00:18,357 INFO L192 CegarLoopUtils]: At program point L11-2(line 11) the Hoare annotation is: true [2021-02-23 18:00:18,357 INFO L185 CegarLoopUtils]: At program point L94(line 94) the Hoare annotation is: false [2021-02-23 18:00:18,357 INFO L192 CegarLoopUtils]: At program point L28(lines 28 30) the Hoare annotation is: true [2021-02-23 18:00:18,357 INFO L185 CegarLoopUtils]: At program point L86(line 86) the Hoare annotation is: (= main_~lk5~0 1) [2021-02-23 18:00:18,358 INFO L185 CegarLoopUtils]: At program point L86-1(lines 7 95) the Hoare annotation is: false [2021-02-23 18:00:18,358 INFO L192 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: true [2021-02-23 18:00:18,358 INFO L192 CegarLoopUtils]: At program point L20-1(line 20) the Hoare annotation is: true [2021-02-23 18:00:18,358 INFO L192 CegarLoopUtils]: At program point L20-2(line 20) the Hoare annotation is: true [2021-02-23 18:00:18,358 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-23 18:00:18,358 INFO L192 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: true [2021-02-23 18:00:18,359 INFO L185 CegarLoopUtils]: At program point L70-1(lines 26 90) the Hoare annotation is: (let ((.cse1 (= main_~p3~0 0)) (.cse4 (= main_~lk5~0 1)) (.cse5 (= main_~p4~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse3 (= main_~lk3~0 1)) (.cse2 (= main_~p5~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4) (and .cse1 .cse5 .cse4) (and .cse1 .cse2 .cse5) (and .cse0 .cse1 .cse4) (and .cse3 .cse5 .cse4) (and .cse3 .cse2 .cse5) (and .cse0 .cse3 .cse2))) [2021-02-23 18:00:18,359 INFO L185 CegarLoopUtils]: At program point L87(line 87) the Hoare annotation is: (= main_~lk5~0 1) [2021-02-23 18:00:18,359 INFO L192 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: true [2021-02-23 18:00:18,359 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 6 95) the Hoare annotation is: true [2021-02-23 18:00:18,359 INFO L185 CegarLoopUtils]: At program point L71(line 71) the Hoare annotation is: (let ((.cse6 (= main_~p5~0 0)) (.cse5 (= main_~lk3~0 1)) (.cse2 (= main_~p4~0 0)) (.cse4 (= main_~lk4~0 1)) (.cse0 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse3 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse3) (and .cse0 .cse6 .cse1 .cse2) (and .cse4 .cse0 .cse6 .cse1) (and .cse4 .cse5 .cse6 .cse1) (and .cse5 .cse6 .cse1 .cse2) (and .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse3))) [2021-02-23 18:00:18,360 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) the Hoare annotation is: false [2021-02-23 18:00:18,360 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 6 95) the Hoare annotation is: true [2021-02-23 18:00:18,360 INFO L185 CegarLoopUtils]: At program point L55-1(lines 26 90) the Hoare annotation is: (let ((.cse6 (= main_~p2~0 0)) (.cse4 (= main_~lk4~0 1)) (.cse5 (= main_~p3~0 0)) (.cse3 (= main_~p1~0 0)) (.cse0 (= main_~lk3~0 1)) (.cse1 (= main_~lk2~0 1)) (.cse2 (= main_~p4~0 0)) (.cse7 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse4 .cse0 .cse3 .cse6) (and .cse4 .cse5 .cse1 .cse3) (and .cse0 .cse2 .cse3 .cse6) (and .cse4 .cse5 .cse3 .cse6) (and .cse5 .cse2 .cse3 .cse6) (and .cse5 .cse1 .cse2 .cse7) (and .cse0 .cse2 .cse6 .cse7) (and .cse5 .cse2 .cse6 .cse7) (and .cse4 .cse0 .cse6 .cse7) (and .cse4 .cse0 .cse1 .cse3) (and .cse4 .cse0 .cse1 .cse7) (and .cse4 .cse5 .cse1 .cse7) (and .cse5 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse7))) [2021-02-23 18:00:18,360 INFO L185 CegarLoopUtils]: At program point L80-1(lines 26 90) the Hoare annotation is: (or (= main_~p5~0 0) (= main_~lk5~0 1)) [2021-02-23 18:00:18,360 INFO L192 CegarLoopUtils]: At program point L14(line 14) the Hoare annotation is: true [2021-02-23 18:00:18,361 INFO L185 CegarLoopUtils]: At program point L47-1(lines 26 90) the Hoare annotation is: (let ((.cse0 (= main_~lk2~0 1)) (.cse2 (= main_~p1~0 0)) (.cse3 (= main_~p2~0 0)) (.cse1 (= main_~lk1~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse0 .cse2) (and .cse3 .cse1))) [2021-02-23 18:00:18,361 INFO L192 CegarLoopUtils]: At program point L14-1(line 14) the Hoare annotation is: true [2021-02-23 18:00:18,361 INFO L192 CegarLoopUtils]: At program point L14-2(line 14) the Hoare annotation is: true [2021-02-23 18:00:18,361 INFO L185 CegarLoopUtils]: At program point L72(line 72) the Hoare annotation is: (let ((.cse6 (= main_~p5~0 0)) (.cse5 (= main_~lk3~0 1)) (.cse2 (= main_~p4~0 0)) (.cse4 (= main_~lk4~0 1)) (.cse0 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse3 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse3) (and .cse0 .cse6 .cse1 .cse2) (and .cse4 .cse0 .cse6 .cse1) (and .cse4 .cse5 .cse6 .cse1) (and .cse5 .cse6 .cse1 .cse2) (and .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse3))) [2021-02-23 18:00:18,361 INFO L192 CegarLoopUtils]: At program point L39(line 39) the Hoare annotation is: true [2021-02-23 18:00:18,362 INFO L192 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: true [2021-02-23 18:00:18,362 INFO L185 CegarLoopUtils]: At program point L56(line 56) the Hoare annotation is: (let ((.cse2 (= main_~lk1~0 1)) (.cse4 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse0 (= main_~lk3~0 1)) (.cse5 (= main_~p1~0 0)) (.cse3 (= main_~p2~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse4 .cse1 .cse2) (and .cse0 .cse1 .cse5) (and .cse4 .cse5 .cse3) (and .cse4 .cse3 .cse2) (and .cse4 .cse1 .cse5) (and .cse0 .cse5 .cse3))) [2021-02-23 18:00:18,362 INFO L185 CegarLoopUtils]: At program point L81(line 81) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1))) (or (and .cse0 (= main_~lk5~0 1)) (and .cse0 (= main_~p5~0 0)))) [2021-02-23 18:00:18,362 INFO L185 CegarLoopUtils]: At program point L48(line 48) the Hoare annotation is: (or (= main_~p1~0 0) (= main_~lk1~0 1)) [2021-02-23 18:00:18,362 INFO L192 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: true [2021-02-23 18:00:18,363 INFO L185 CegarLoopUtils]: At program point L65-1(lines 26 90) the Hoare annotation is: (let ((.cse6 (= main_~lk3~0 1)) (.cse0 (= main_~lk4~0 1)) (.cse4 (= main_~lk2~0 1)) (.cse2 (= main_~lk5~0 1)) (.cse1 (= main_~p3~0 0)) (.cse7 (= main_~p5~0 0)) (.cse5 (= main_~p4~0 0)) (.cse3 (= main_~p2~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse4 .cse5 .cse2) (and .cse0 .cse6 .cse7 .cse4) (and .cse6 .cse4 .cse5 .cse2) (and .cse0 .cse6 .cse2 .cse3) (and .cse0 .cse1 .cse7 .cse3) (and .cse6 .cse7 .cse5 .cse3) (and .cse0 .cse6 .cse4 .cse2) (and .cse1 .cse7 .cse4 .cse5) (and .cse6 .cse5 .cse2 .cse3) (and .cse0 .cse6 .cse7 .cse3) (and .cse1 .cse5 .cse2 .cse3) (and .cse0 .cse1 .cse7 .cse4) (and .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse1 .cse4 .cse2) (and .cse1 .cse7 .cse5 .cse3))) [2021-02-23 18:00:18,363 INFO L192 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: true [2021-02-23 18:00:18,363 INFO L185 CegarLoopUtils]: At program point L82(line 82) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1))) (or (and .cse0 (= main_~lk5~0 1)) (and .cse0 (= main_~p5~0 0)))) [2021-02-23 18:00:18,363 INFO L192 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: true [2021-02-23 18:00:18,363 INFO L192 CegarLoopUtils]: At program point L8-1(line 8) the Hoare annotation is: true [2021-02-23 18:00:18,363 INFO L185 CegarLoopUtils]: At program point L66(line 66) the Hoare annotation is: (let ((.cse7 (= main_~p5~0 0)) (.cse0 (= main_~lk3~0 1)) (.cse8 (= main_~lk4~0 1)) (.cse6 (= main_~p2~0 0)) (.cse5 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse2 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse2 .cse3 .cse6 .cse4) (and .cse0 .cse7 .cse2 .cse6 .cse4) (and .cse8 .cse0 .cse7 .cse6 .cse4) (and .cse5 .cse7 .cse2 .cse6 .cse4) (and .cse5 .cse7 .cse1 .cse2 .cse4) (and .cse8 .cse5 .cse7 .cse1 .cse4) (and .cse8 .cse0 .cse1 .cse3 .cse4) (and .cse8 .cse0 .cse7 .cse1 .cse4) (and .cse8 .cse5 .cse7 .cse6 .cse4) (and .cse0 .cse7 .cse1 .cse2 .cse4) (and .cse8 .cse5 .cse1 .cse3 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse8 .cse0 .cse3 .cse6 .cse4) (and .cse8 .cse5 .cse3 .cse6 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4))) [2021-02-23 18:00:18,364 INFO L192 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: true [2021-02-23 18:00:18,364 INFO L192 CegarLoopUtils]: At program point L91(lines 7 95) the Hoare annotation is: true [2021-02-23 18:00:18,364 INFO L192 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: true [2021-02-23 18:00:18,364 INFO L192 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: true [2021-02-23 18:00:18,364 INFO L192 CegarLoopUtils]: At program point L17-2(line 17) the Hoare annotation is: true [2021-02-23 18:00:18,364 INFO L185 CegarLoopUtils]: At program point L75-1(lines 26 90) the Hoare annotation is: (let ((.cse1 (= main_~lk5~0 1)) (.cse2 (= main_~lk4~0 1)) (.cse3 (= main_~p5~0 0)) (.cse0 (= main_~p4~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and .cse2 .cse3) (and .cse3 .cse0))) [2021-02-23 18:00:18,364 INFO L192 CegarLoopUtils]: At program point L9(line 9) the Hoare annotation is: true [2021-02-23 18:00:18,365 INFO L185 CegarLoopUtils]: At program point L67(line 67) the Hoare annotation is: (let ((.cse7 (= main_~p5~0 0)) (.cse0 (= main_~lk3~0 1)) (.cse8 (= main_~lk4~0 1)) (.cse6 (= main_~p2~0 0)) (.cse5 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse2 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse2 .cse3 .cse6 .cse4) (and .cse0 .cse7 .cse2 .cse6 .cse4) (and .cse8 .cse0 .cse7 .cse6 .cse4) (and .cse5 .cse7 .cse2 .cse6 .cse4) (and .cse5 .cse7 .cse1 .cse2 .cse4) (and .cse8 .cse5 .cse7 .cse1 .cse4) (and .cse8 .cse0 .cse1 .cse3 .cse4) (and .cse8 .cse0 .cse7 .cse1 .cse4) (and .cse8 .cse5 .cse7 .cse6 .cse4) (and .cse0 .cse7 .cse1 .cse2 .cse4) (and .cse8 .cse5 .cse1 .cse3 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse8 .cse0 .cse3 .cse6 .cse4) (and .cse8 .cse5 .cse3 .cse6 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4))) [2021-02-23 18:00:18,365 INFO L185 CegarLoopUtils]: At program point L59-1(lines 26 90) the Hoare annotation is: (let ((.cse0 (= main_~lk3~0 1)) (.cse6 (= main_~p2~0 0)) (.cse2 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~lk1~0 1)) (.cse8 (= main_~lk4~0 1)) (.cse7 (= main_~p3~0 0)) (.cse5 (= main_~p5~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse9 (= main_~p1~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse4) (and .cse7 .cse5 .cse1 .cse2 .cse4) (and .cse8 .cse0 .cse5 .cse6 .cse4) (and .cse7 .cse5 .cse2 .cse6 .cse4) (and .cse8 .cse7 .cse5 .cse1 .cse4) (and .cse8 .cse0 .cse1 .cse3 .cse4) (and .cse8 .cse0 .cse5 .cse1 .cse4) (and .cse7 .cse1 .cse2 .cse3 .cse9) (and .cse8 .cse7 .cse5 .cse6 .cse4) (and .cse8 .cse7 .cse1 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse4) (and .cse0 .cse5 .cse2 .cse9 .cse6) (and .cse8 .cse7 .cse3 .cse6 .cse4) (and .cse8 .cse7 .cse3 .cse9 .cse6) (and .cse7 .cse2 .cse3 .cse9 .cse6) (and .cse8 .cse0 .cse5 .cse1 .cse9) (and .cse7 .cse2 .cse3 .cse6 .cse4) (and .cse7 .cse5 .cse1 .cse2 .cse9) (and .cse8 .cse0 .cse1 .cse3 .cse9) (and .cse8 .cse0 .cse5 .cse9 .cse6) (and .cse8 .cse7 .cse5 .cse9 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse9) (and .cse0 .cse2 .cse3 .cse9 .cse6) (and .cse8 .cse7 .cse1 .cse3 .cse9) (and .cse8 .cse0 .cse3 .cse9 .cse6) (and .cse0 .cse5 .cse1 .cse2 .cse9) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse8 .cse0 .cse3 .cse6 .cse4) (and .cse7 .cse5 .cse2 .cse9 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4) (and .cse8 .cse7 .cse5 .cse1 .cse9))) [2021-02-23 18:00:18,365 INFO L192 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: true [2021-02-23 18:00:18,366 INFO L185 CegarLoopUtils]: At program point L51-1(lines 26 90) the Hoare annotation is: (let ((.cse2 (= main_~lk1~0 1)) (.cse4 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse0 (= main_~lk3~0 1)) (.cse5 (= main_~p1~0 0)) (.cse3 (= main_~p2~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse4 .cse1 .cse2) (and .cse0 .cse1 .cse5) (and .cse4 .cse5 .cse3) (and .cse4 .cse3 .cse2) (and .cse4 .cse1 .cse5) (and .cse0 .cse5 .cse3))) [2021-02-23 18:00:18,366 INFO L185 CegarLoopUtils]: At program point L76(line 76) the Hoare annotation is: (let ((.cse2 (= main_~lk5~0 1)) (.cse3 (= main_~p4~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~lk3~0 1)) (.cse4 (= main_~p5~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3 .cse2) (and .cse1 .cse4 .cse3) (and .cse0 .cse1 .cse4))) [2021-02-23 18:00:18,366 INFO L192 CegarLoopUtils]: At program point L43(lines 43 45) the Hoare annotation is: true [2021-02-23 18:00:18,366 INFO L185 CegarLoopUtils]: At program point L43-2(lines 26 90) the Hoare annotation is: (or (= main_~p1~0 0) (= main_~lk1~0 1)) [2021-02-23 18:00:18,366 INFO L192 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: true [2021-02-23 18:00:18,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:00:18 BoogieIcfgContainer [2021-02-23 18:00:18,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:00:18,383 INFO L168 Benchmark]: Toolchain (without parser) took 13108.08 ms. Allocated memory was 153.1 MB in the beginning and 346.0 MB in the end (delta: 192.9 MB). Free memory was 129.6 MB in the beginning and 259.7 MB in the end (delta: -130.1 MB). Peak memory consumption was 206.5 MB. Max. memory is 8.0 GB. [2021-02-23 18:00:18,384 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 153.1 MB. Free memory is still 127.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:00:18,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.28 ms. Allocated memory is still 153.1 MB. Free memory was 128.4 MB in the beginning and 118.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 18:00:18,385 INFO L168 Benchmark]: Boogie Preprocessor took 51.52 ms. Allocated memory is still 153.1 MB. Free memory was 118.9 MB in the beginning and 117.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 18:00:18,386 INFO L168 Benchmark]: RCFGBuilder took 701.02 ms. Allocated memory is still 153.1 MB. Free memory was 117.1 MB in the beginning and 129.6 MB in the end (delta: -12.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-02-23 18:00:18,387 INFO L168 Benchmark]: TraceAbstraction took 11992.20 ms. Allocated memory was 153.1 MB in the beginning and 346.0 MB in the end (delta: 192.9 MB). Free memory was 129.6 MB in the beginning and 259.7 MB in the end (delta: -130.1 MB). Peak memory consumption was 206.5 MB. Max. memory is 8.0 GB. [2021-02-23 18:00:18,389 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 153.1 MB. Free memory is still 127.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 339.28 ms. Allocated memory is still 153.1 MB. Free memory was 128.4 MB in the beginning and 118.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 51.52 ms. Allocated memory is still 153.1 MB. Free memory was 118.9 MB in the beginning and 117.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 701.02 ms. Allocated memory is still 153.1 MB. Free memory was 117.1 MB in the beginning and 129.6 MB in the end (delta: -12.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 11992.20 ms. Allocated memory was 153.1 MB in the beginning and 346.0 MB in the end (delta: 192.9 MB). Free memory was 129.6 MB in the beginning and 259.7 MB in the end (delta: -130.1 MB). Peak memory consumption was 206.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 6]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1037 SDtfs, 1151 SDslu, 154 SDs, 0 SdLazy, 745 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=499occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 218 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 77 LocationsWithAnnotation, 77 PreInvPairs, 965 NumberOfFragments, 2417 HoareAnnotationTreeSize, 77 FomulaSimplifications, 129125 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 77 FomulaSimplificationsInter, 6608 FormulaSimplificationTreeSizeReductionInter, 4.9s 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...