/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_6.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:00:09,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:00:09,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:00:09,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 18:00:09,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:00:09,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:00:09,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:00:09,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:00:09,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:00:09,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:00:09,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:00:09,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:00:09,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:00:09,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:00:09,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:00:09,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:00:09,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 18:00:09,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:00:09,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:00:09,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:00:09,216 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 18:00:09,244 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:00:09,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:00:09,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:00:09,250 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:00:09,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:00:09,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:00:09,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:00:09,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:00:09,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:00:09,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:00:09,252 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:00:09,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:00:09,253 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:00:09,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:00:09,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:00:09,254 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:00:09,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:00:09,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:00:09,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:00:09,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:00:09,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:00:09,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:00:09,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:00:09,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:00:09,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:00:09,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:00:09,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:00:09,790 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:00:09,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_6.c [2021-02-23 18:00:09,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd5a972af/5b839f18da8f4b39b7e6fa9402a98b01/FLAG5bff99a2d [2021-02-23 18:00:10,521 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:00:10,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_6.c [2021-02-23 18:00:10,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd5a972af/5b839f18da8f4b39b7e6fa9402a98b01/FLAG5bff99a2d [2021-02-23 18:00:10,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd5a972af/5b839f18da8f4b39b7e6fa9402a98b01 [2021-02-23 18:00:10,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:00:10,889 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:00:10,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:00:10,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:00:10,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:00:10,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:00:10" (1/1) ... [2021-02-23 18:00:10,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b5a0cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:10, skipping insertion in model container [2021-02-23 18:00:10,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:00:10" (1/1) ... [2021-02-23 18:00:10,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:00:10,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:00:11,160 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_6.c[2544,2557] [2021-02-23 18:00:11,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:00:11,178 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:00:11,204 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_6.c[2544,2557] [2021-02-23 18:00:11,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:00:11,223 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:00:11,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:11 WrapperNode [2021-02-23 18:00:11,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:00:11,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:00:11,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:00:11,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:00:11,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:11" (1/1) ... [2021-02-23 18:00:11,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:11" (1/1) ... [2021-02-23 18:00:11,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:11" (1/1) ... [2021-02-23 18:00:11,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:11" (1/1) ... [2021-02-23 18:00:11,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:11" (1/1) ... [2021-02-23 18:00:11,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:11" (1/1) ... [2021-02-23 18:00:11,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:11" (1/1) ... [2021-02-23 18:00:11,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:00:11,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:00:11,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:00:11,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:00:11,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:11" (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 18:00:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:00:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:00:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:00:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:00:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:00:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:00:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:00:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:00:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 18:00:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:00:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:00:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:00:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:00:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:00:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:00:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:00:12,057 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:00:12,057 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 18:00:12,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:00:12 BoogieIcfgContainer [2021-02-23 18:00:12,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:00:12,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:00:12,062 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:00:12,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:00:12,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:00:10" (1/3) ... [2021-02-23 18:00:12,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77676176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:00:12, skipping insertion in model container [2021-02-23 18:00:12,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:00:11" (2/3) ... [2021-02-23 18:00:12,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77676176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:00:12, skipping insertion in model container [2021-02-23 18:00:12,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:00:12" (3/3) ... [2021-02-23 18:00:12,072 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_6.c [2021-02-23 18:00:12,081 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:00:12,088 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:00:12,111 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:00:12,138 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:00:12,138 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:00:12,139 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:00:12,139 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:00:12,139 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:00:12,139 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:00:12,139 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:00:12,139 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:00:12,158 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2021-02-23 18:00:12,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-23 18:00:12,171 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:12,172 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, 1] [2021-02-23 18:00:12,173 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:12,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:12,181 INFO L82 PathProgramCache]: Analyzing trace with hash 156622351, now seen corresponding path program 1 times [2021-02-23 18:00:12,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:12,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034064700] [2021-02-23 18:00:12,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:12,286 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:12,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:12,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:12,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:12,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:12,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:12,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:12,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:12,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:12,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:12,649 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 18:00:12,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034064700] [2021-02-23 18:00:12,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:12,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:12,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793918570] [2021-02-23 18:00:12,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:12,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:12,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:12,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:12,686 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2021-02-23 18:00:13,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:13,552 INFO L93 Difference]: Finished difference Result 178 states and 238 transitions. [2021-02-23 18:00:13,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:13,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2021-02-23 18:00:13,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:13,577 INFO L225 Difference]: With dead ends: 178 [2021-02-23 18:00:13,577 INFO L226 Difference]: Without dead ends: 120 [2021-02-23 18:00:13,583 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 18:00:13,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-02-23 18:00:13,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2021-02-23 18:00:13,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2021-02-23 18:00:13,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 150 transitions. [2021-02-23 18:00:13,675 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 150 transitions. Word has length 57 [2021-02-23 18:00:13,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:13,676 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 150 transitions. [2021-02-23 18:00:13,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:13,677 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 150 transitions. [2021-02-23 18:00:13,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-23 18:00:13,680 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:13,680 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, 1, 1] [2021-02-23 18:00:13,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:00:13,681 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:13,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:13,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1202234617, now seen corresponding path program 1 times [2021-02-23 18:00:13,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:13,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308772440] [2021-02-23 18:00:13,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:13,687 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:13,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:13,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:13,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:13,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:13,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:13,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:13,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:13,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:13,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:13,932 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 18:00:13,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308772440] [2021-02-23 18:00:13,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:13,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:13,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547318732] [2021-02-23 18:00:13,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:13,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:13,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:13,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:13,940 INFO L87 Difference]: Start difference. First operand 118 states and 150 transitions. Second operand 4 states. [2021-02-23 18:00:14,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:14,472 INFO L93 Difference]: Finished difference Result 143 states and 183 transitions. [2021-02-23 18:00:14,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:14,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2021-02-23 18:00:14,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:14,482 INFO L225 Difference]: With dead ends: 143 [2021-02-23 18:00:14,482 INFO L226 Difference]: Without dead ends: 141 [2021-02-23 18:00:14,486 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 18:00:14,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-02-23 18:00:14,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 118. [2021-02-23 18:00:14,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2021-02-23 18:00:14,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 149 transitions. [2021-02-23 18:00:14,556 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 149 transitions. Word has length 58 [2021-02-23 18:00:14,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:14,557 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 149 transitions. [2021-02-23 18:00:14,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:14,557 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 149 transitions. [2021-02-23 18:00:14,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-23 18:00:14,560 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:14,560 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, 1, 1] [2021-02-23 18:00:14,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:00:14,561 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:14,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:14,562 INFO L82 PathProgramCache]: Analyzing trace with hash 560570913, now seen corresponding path program 1 times [2021-02-23 18:00:14,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:14,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619923217] [2021-02-23 18:00:14,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:14,571 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:14,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:14,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:14,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:14,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:14,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:14,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:14,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:14,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:14,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:14,747 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 18:00:14,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619923217] [2021-02-23 18:00:14,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:14,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:14,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413693242] [2021-02-23 18:00:14,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:14,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:14,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:14,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:14,750 INFO L87 Difference]: Start difference. First operand 118 states and 149 transitions. Second operand 4 states. [2021-02-23 18:00:15,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:15,181 INFO L93 Difference]: Finished difference Result 274 states and 365 transitions. [2021-02-23 18:00:15,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:15,182 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2021-02-23 18:00:15,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:15,185 INFO L225 Difference]: With dead ends: 274 [2021-02-23 18:00:15,185 INFO L226 Difference]: Without dead ends: 193 [2021-02-23 18:00:15,187 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 18:00:15,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-02-23 18:00:15,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 191. [2021-02-23 18:00:15,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2021-02-23 18:00:15,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 248 transitions. [2021-02-23 18:00:15,243 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 248 transitions. Word has length 58 [2021-02-23 18:00:15,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:15,244 INFO L480 AbstractCegarLoop]: Abstraction has 191 states and 248 transitions. [2021-02-23 18:00:15,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:15,244 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 248 transitions. [2021-02-23 18:00:15,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-02-23 18:00:15,246 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:15,246 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, 1, 1, 1] [2021-02-23 18:00:15,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 18:00:15,247 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:15,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:15,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1569348316, now seen corresponding path program 1 times [2021-02-23 18:00:15,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:15,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277099222] [2021-02-23 18:00:15,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:15,251 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:15,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:15,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:15,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:15,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:15,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:15,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:15,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:15,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:15,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:15,377 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 18:00:15,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277099222] [2021-02-23 18:00:15,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:15,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:15,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278896552] [2021-02-23 18:00:15,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:15,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:15,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:15,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:15,383 INFO L87 Difference]: Start difference. First operand 191 states and 248 transitions. Second operand 4 states. [2021-02-23 18:00:15,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:15,713 INFO L93 Difference]: Finished difference Result 233 states and 304 transitions. [2021-02-23 18:00:15,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:15,713 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2021-02-23 18:00:15,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:15,716 INFO L225 Difference]: With dead ends: 233 [2021-02-23 18:00:15,716 INFO L226 Difference]: Without dead ends: 231 [2021-02-23 18:00:15,717 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 18:00:15,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-02-23 18:00:15,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 191. [2021-02-23 18:00:15,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2021-02-23 18:00:15,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 246 transitions. [2021-02-23 18:00:15,780 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 246 transitions. Word has length 59 [2021-02-23 18:00:15,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:15,781 INFO L480 AbstractCegarLoop]: Abstraction has 191 states and 246 transitions. [2021-02-23 18:00:15,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:15,781 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 246 transitions. [2021-02-23 18:00:15,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-02-23 18:00:15,783 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:15,783 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, 1, 1, 1] [2021-02-23 18:00:15,783 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 18:00:15,784 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:15,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:15,784 INFO L82 PathProgramCache]: Analyzing trace with hash 198074819, now seen corresponding path program 1 times [2021-02-23 18:00:15,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:15,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926777762] [2021-02-23 18:00:15,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:15,787 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:15,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:15,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:15,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:15,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:15,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:15,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:15,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:15,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:15,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:15,907 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 18:00:15,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926777762] [2021-02-23 18:00:15,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:15,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:15,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206811508] [2021-02-23 18:00:15,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:15,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:15,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:15,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:15,910 INFO L87 Difference]: Start difference. First operand 191 states and 246 transitions. Second operand 4 states. [2021-02-23 18:00:16,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:16,281 INFO L93 Difference]: Finished difference Result 487 states and 648 transitions. [2021-02-23 18:00:16,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:16,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2021-02-23 18:00:16,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:16,288 INFO L225 Difference]: With dead ends: 487 [2021-02-23 18:00:16,289 INFO L226 Difference]: Without dead ends: 333 [2021-02-23 18:00:16,295 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 18:00:16,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-02-23 18:00:16,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 331. [2021-02-23 18:00:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2021-02-23 18:00:16,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 430 transitions. [2021-02-23 18:00:16,376 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 430 transitions. Word has length 59 [2021-02-23 18:00:16,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:16,377 INFO L480 AbstractCegarLoop]: Abstraction has 331 states and 430 transitions. [2021-02-23 18:00:16,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:16,377 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 430 transitions. [2021-02-23 18:00:16,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-02-23 18:00:16,383 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:16,383 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, 1, 1, 1, 1] [2021-02-23 18:00:16,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 18:00:16,384 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:16,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:16,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1845598165, now seen corresponding path program 1 times [2021-02-23 18:00:16,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:16,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [305774711] [2021-02-23 18:00:16,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:16,387 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:16,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:16,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:16,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:16,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:16,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:16,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:16,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:16,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:16,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:16,510 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 18:00:16,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [305774711] [2021-02-23 18:00:16,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:16,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:16,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271756478] [2021-02-23 18:00:16,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:16,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:16,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:16,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:16,513 INFO L87 Difference]: Start difference. First operand 331 states and 430 transitions. Second operand 4 states. [2021-02-23 18:00:16,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:16,919 INFO L93 Difference]: Finished difference Result 895 states and 1184 transitions. [2021-02-23 18:00:16,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:16,920 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2021-02-23 18:00:16,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:16,923 INFO L225 Difference]: With dead ends: 895 [2021-02-23 18:00:16,924 INFO L226 Difference]: Without dead ends: 601 [2021-02-23 18:00:16,925 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 18:00:16,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-02-23 18:00:17,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 599. [2021-02-23 18:00:17,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2021-02-23 18:00:17,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 774 transitions. [2021-02-23 18:00:17,022 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 774 transitions. Word has length 60 [2021-02-23 18:00:17,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:17,022 INFO L480 AbstractCegarLoop]: Abstraction has 599 states and 774 transitions. [2021-02-23 18:00:17,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:17,023 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 774 transitions. [2021-02-23 18:00:17,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-02-23 18:00:17,024 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:17,024 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, 1, 1, 1, 1] [2021-02-23 18:00:17,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 18:00:17,025 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:17,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:17,025 INFO L82 PathProgramCache]: Analyzing trace with hash -64970725, now seen corresponding path program 1 times [2021-02-23 18:00:17,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:17,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336850121] [2021-02-23 18:00:17,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:17,028 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:17,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:17,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:17,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:17,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:17,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:17,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:17,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:17,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:17,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:17,111 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 18:00:17,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336850121] [2021-02-23 18:00:17,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:17,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:17,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173838713] [2021-02-23 18:00:17,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:17,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:17,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:17,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:17,114 INFO L87 Difference]: Start difference. First operand 599 states and 774 transitions. Second operand 4 states. [2021-02-23 18:00:17,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:17,532 INFO L93 Difference]: Finished difference Result 731 states and 944 transitions. [2021-02-23 18:00:17,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:17,534 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2021-02-23 18:00:17,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:17,539 INFO L225 Difference]: With dead ends: 731 [2021-02-23 18:00:17,539 INFO L226 Difference]: Without dead ends: 729 [2021-02-23 18:00:17,540 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 18:00:17,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2021-02-23 18:00:17,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 599. [2021-02-23 18:00:17,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2021-02-23 18:00:17,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 766 transitions. [2021-02-23 18:00:17,631 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 766 transitions. Word has length 60 [2021-02-23 18:00:17,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:17,632 INFO L480 AbstractCegarLoop]: Abstraction has 599 states and 766 transitions. [2021-02-23 18:00:17,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:17,632 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 766 transitions. [2021-02-23 18:00:17,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-23 18:00:17,633 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:17,633 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, 1, 1, 1, 1, 1] [2021-02-23 18:00:17,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 18:00:17,634 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:17,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:17,635 INFO L82 PathProgramCache]: Analyzing trace with hash -673905288, now seen corresponding path program 1 times [2021-02-23 18:00:17,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:17,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593832233] [2021-02-23 18:00:17,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:17,639 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:17,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:17,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:17,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:17,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:17,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:17,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:17,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:17,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:17,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:17,775 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 18:00:17,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593832233] [2021-02-23 18:00:17,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:17,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:17,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637144115] [2021-02-23 18:00:17,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:17,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:17,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:17,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:17,778 INFO L87 Difference]: Start difference. First operand 599 states and 766 transitions. Second operand 4 states. [2021-02-23 18:00:18,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:18,162 INFO L93 Difference]: Finished difference Result 723 states and 920 transitions. [2021-02-23 18:00:18,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:18,163 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2021-02-23 18:00:18,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:18,167 INFO L225 Difference]: With dead ends: 723 [2021-02-23 18:00:18,167 INFO L226 Difference]: Without dead ends: 721 [2021-02-23 18:00:18,168 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 18:00:18,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2021-02-23 18:00:18,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 599. [2021-02-23 18:00:18,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2021-02-23 18:00:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 758 transitions. [2021-02-23 18:00:18,257 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 758 transitions. Word has length 61 [2021-02-23 18:00:18,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:18,257 INFO L480 AbstractCegarLoop]: Abstraction has 599 states and 758 transitions. [2021-02-23 18:00:18,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:18,258 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 758 transitions. [2021-02-23 18:00:18,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-23 18:00:18,259 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:18,259 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, 1, 1, 1, 1, 1] [2021-02-23 18:00:18,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 18:00:18,259 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:18,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:18,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1379214711, now seen corresponding path program 1 times [2021-02-23 18:00:18,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:18,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805784889] [2021-02-23 18:00:18,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:18,263 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:18,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:18,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:18,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:18,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:18,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:18,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:18,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:18,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:18,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:18,358 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 18:00:18,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805784889] [2021-02-23 18:00:18,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:18,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:18,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289685883] [2021-02-23 18:00:18,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:18,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:18,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:18,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:18,361 INFO L87 Difference]: Start difference. First operand 599 states and 758 transitions. Second operand 4 states. [2021-02-23 18:00:18,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:18,810 INFO L93 Difference]: Finished difference Result 1675 states and 2136 transitions. [2021-02-23 18:00:18,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:18,811 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2021-02-23 18:00:18,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:18,817 INFO L225 Difference]: With dead ends: 1675 [2021-02-23 18:00:18,817 INFO L226 Difference]: Without dead ends: 1113 [2021-02-23 18:00:18,819 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 18:00:18,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2021-02-23 18:00:18,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1111. [2021-02-23 18:00:18,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1111 states. [2021-02-23 18:00:19,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1382 transitions. [2021-02-23 18:00:19,005 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1382 transitions. Word has length 61 [2021-02-23 18:00:19,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:19,005 INFO L480 AbstractCegarLoop]: Abstraction has 1111 states and 1382 transitions. [2021-02-23 18:00:19,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:19,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1382 transitions. [2021-02-23 18:00:19,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-23 18:00:19,007 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:19,007 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, 1, 1, 1, 1, 1, 1] [2021-02-23 18:00:19,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 18:00:19,008 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:19,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:19,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1923960111, now seen corresponding path program 1 times [2021-02-23 18:00:19,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:19,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797385253] [2021-02-23 18:00:19,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:19,011 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:19,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:19,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:19,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:19,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:19,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:19,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:19,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:19,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:19,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:19,085 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 18:00:19,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797385253] [2021-02-23 18:00:19,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:19,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:19,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632893533] [2021-02-23 18:00:19,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:19,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:19,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:19,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:19,087 INFO L87 Difference]: Start difference. First operand 1111 states and 1382 transitions. Second operand 4 states. [2021-02-23 18:00:19,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:19,600 INFO L93 Difference]: Finished difference Result 1323 states and 1624 transitions. [2021-02-23 18:00:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:19,601 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2021-02-23 18:00:19,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:19,609 INFO L225 Difference]: With dead ends: 1323 [2021-02-23 18:00:19,609 INFO L226 Difference]: Without dead ends: 1321 [2021-02-23 18:00:19,610 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 18:00:19,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2021-02-23 18:00:19,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1111. [2021-02-23 18:00:19,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1111 states. [2021-02-23 18:00:19,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1366 transitions. [2021-02-23 18:00:19,807 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1366 transitions. Word has length 62 [2021-02-23 18:00:19,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:19,808 INFO L480 AbstractCegarLoop]: Abstraction has 1111 states and 1366 transitions. [2021-02-23 18:00:19,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:19,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1366 transitions. [2021-02-23 18:00:19,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-23 18:00:19,810 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:19,810 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, 1, 1, 1, 1, 1, 1] [2021-02-23 18:00:19,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 18:00:19,811 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:19,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:19,812 INFO L82 PathProgramCache]: Analyzing trace with hash -193770103, now seen corresponding path program 1 times [2021-02-23 18:00:19,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:19,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370310083] [2021-02-23 18:00:19,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:19,815 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:19,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:19,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:19,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:19,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:19,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:19,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:19,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:19,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:19,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:19,907 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 18:00:19,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370310083] [2021-02-23 18:00:19,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:19,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:19,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301114819] [2021-02-23 18:00:19,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:19,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:19,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:19,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:19,910 INFO L87 Difference]: Start difference. First operand 1111 states and 1366 transitions. Second operand 4 states. [2021-02-23 18:00:20,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:20,555 INFO L93 Difference]: Finished difference Result 3161 states and 3895 transitions. [2021-02-23 18:00:20,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:20,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2021-02-23 18:00:20,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:20,563 INFO L225 Difference]: With dead ends: 3161 [2021-02-23 18:00:20,563 INFO L226 Difference]: Without dead ends: 1111 [2021-02-23 18:00:20,568 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 18:00:20,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2021-02-23 18:00:20,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1111. [2021-02-23 18:00:20,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1111 states. [2021-02-23 18:00:20,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1302 transitions. [2021-02-23 18:00:20,747 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1302 transitions. Word has length 62 [2021-02-23 18:00:20,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:20,748 INFO L480 AbstractCegarLoop]: Abstraction has 1111 states and 1302 transitions. [2021-02-23 18:00:20,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:20,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1302 transitions. [2021-02-23 18:00:20,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-23 18:00:20,750 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:00:20,750 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, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:00:20,750 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 18:00:20,751 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:00:20,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:00:20,751 INFO L82 PathProgramCache]: Analyzing trace with hash 853409228, now seen corresponding path program 1 times [2021-02-23 18:00:20,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:00:20,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674006015] [2021-02-23 18:00:20,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:00:20,754 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:00:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:20,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:20,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:20,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:20,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:00:20,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:20,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:20,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:00:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:00:20,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:00:20,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:00:20,834 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 18:00:20,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674006015] [2021-02-23 18:00:20,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:00:20,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:00:20,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869285238] [2021-02-23 18:00:20,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:00:20,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:00:20,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:00:20,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:00:20,839 INFO L87 Difference]: Start difference. First operand 1111 states and 1302 transitions. Second operand 4 states. [2021-02-23 18:00:21,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:00:21,326 INFO L93 Difference]: Finished difference Result 1111 states and 1302 transitions. [2021-02-23 18:00:21,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:00:21,328 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2021-02-23 18:00:21,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:00:21,328 INFO L225 Difference]: With dead ends: 1111 [2021-02-23 18:00:21,329 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 18:00:21,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:00:21,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 18:00:21,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 18:00:21,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 18:00:21,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 18:00:21,335 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2021-02-23 18:00:21,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:00:21,335 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 18:00:21,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:00:21,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 18:00:21,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 18:00:21,336 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-23 18:00:21,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 18:00:21,563 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-23 18:00:21,870 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 31 [2021-02-23 18:00:22,268 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 31 [2021-02-23 18:00:22,412 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 53 [2021-02-23 18:00:22,544 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 41 [2021-02-23 18:00:22,882 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 31 [2021-02-23 18:00:23,257 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 31 [2021-02-23 18:00:23,529 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 31 [2021-02-23 18:00:23,797 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 31 [2021-02-23 18:00:23,910 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 85 [2021-02-23 18:00:24,296 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 31 [2021-02-23 18:00:24,426 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 45 [2021-02-23 18:00:24,537 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 34 [2021-02-23 18:00:24,735 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 31 [2021-02-23 18:00:24,949 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 31 [2021-02-23 18:00:25,454 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-02-23 18:00:25,741 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 34 [2021-02-23 18:00:25,982 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 39 [2021-02-23 18:00:26,995 WARN L202 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2021-02-23 18:00:29,711 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-23 18:00:32,224 WARN L202 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2021-02-23 18:00:33,448 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2021-02-23 18:00:33,712 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 17 [2021-02-23 18:00:34,187 WARN L202 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2021-02-23 18:00:34,312 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 11 [2021-02-23 18:00:35,715 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2021-02-23 18:00:35,951 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 15 [2021-02-23 18:00:38,431 WARN L202 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2021-02-23 18:00:38,984 WARN L202 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2021-02-23 18:00:39,107 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 11 [2021-02-23 18:00:39,600 WARN L202 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2021-02-23 18:00:39,817 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 15 [2021-02-23 18:00:40,927 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2021-02-23 18:00:43,467 WARN L202 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2021-02-23 18:00:46,278 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-23 18:00:46,790 WARN L202 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2021-02-23 18:00:52,408 WARN L202 SmtUtils]: Spent 5.60 s on a formula simplification. DAG size of input: 111 DAG size of output: 91 [2021-02-23 18:00:53,403 WARN L202 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2021-02-23 18:00:53,607 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 15 [2021-02-23 18:00:53,854 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 17 [2021-02-23 18:00:54,384 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2021-02-23 18:00:54,396 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 18:00:54,397 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 18:00:54,397 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 18:00:54,397 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 18:00:54,397 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 18:00:54,397 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:00:54,397 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 18:00:54,397 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 18:00:54,398 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 18:00:54,398 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 18:00:54,398 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 18:00:54,398 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 18:00:54,398 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:00:54,398 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:00:54,398 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:00:54,398 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 18:00:54,399 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 18:00:54,399 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-23 18:00:54,399 INFO L185 CegarLoopUtils]: At program point L60-1(lines 29 104) 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 18:00:54,399 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 6 109) the Hoare annotation is: true [2021-02-23 18:00:54,400 INFO L185 CegarLoopUtils]: At program point L85(line 85) the Hoare annotation is: (let ((.cse3 (= main_~p5~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse2 (= main_~p6~0 0)) (.cse1 (= main_~lk3~0 1)) (.cse4 (= main_~lk6~0 1)) (.cse6 (= main_~p4~0 0)) (.cse5 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse4 .cse5) (and .cse1 .cse2 .cse6 .cse5) (and .cse1 .cse2 .cse3 .cse6) (and .cse1 .cse3 .cse4 .cse6) (and .cse0 .cse1 .cse2 .cse5) (and .cse1 .cse4 .cse6 .cse5))) [2021-02-23 18:00:54,400 INFO L185 CegarLoopUtils]: At program point L52-1(lines 29 104) 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 18:00:54,400 INFO L192 CegarLoopUtils]: At program point L44(line 44) the Hoare annotation is: true [2021-02-23 18:00:54,400 INFO L192 CegarLoopUtils]: At program point L11(line 11) the Hoare annotation is: true [2021-02-23 18:00:54,400 INFO L192 CegarLoopUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2021-02-23 18:00:54,400 INFO L192 CegarLoopUtils]: At program point L11-2(line 11) the Hoare annotation is: true [2021-02-23 18:00:54,401 INFO L185 CegarLoopUtils]: At program point L69(line 69) 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 18:00:54,401 INFO L192 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: true [2021-02-23 18:00:54,401 INFO L185 CegarLoopUtils]: At program point L61(line 61) 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 18:00:54,402 INFO L185 CegarLoopUtils]: At program point L94-1(lines 29 104) the Hoare annotation is: (or (= main_~p6~0 0) (= main_~lk6~0 1)) [2021-02-23 18:00:54,402 INFO L185 CegarLoopUtils]: At program point L86(line 86) the Hoare annotation is: (let ((.cse3 (= main_~p5~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse2 (= main_~p6~0 0)) (.cse1 (= main_~lk3~0 1)) (.cse4 (= main_~lk6~0 1)) (.cse6 (= main_~p4~0 0)) (.cse5 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse4 .cse5) (and .cse1 .cse2 .cse6 .cse5) (and .cse1 .cse2 .cse3 .cse6) (and .cse1 .cse3 .cse4 .cse6) (and .cse0 .cse1 .cse2 .cse5) (and .cse1 .cse4 .cse6 .cse5))) [2021-02-23 18:00:54,402 INFO L185 CegarLoopUtils]: At program point L53(line 53) the Hoare annotation is: (or (= main_~p1~0 0) (= main_~lk1~0 1)) [2021-02-23 18:00:54,402 INFO L192 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: true [2021-02-23 18:00:54,402 INFO L192 CegarLoopUtils]: At program point L20-1(line 20) the Hoare annotation is: true [2021-02-23 18:00:54,403 INFO L192 CegarLoopUtils]: At program point L20-2(line 20) the Hoare annotation is: true [2021-02-23 18:00:54,403 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-23 18:00:54,403 INFO L185 CegarLoopUtils]: At program point L95(line 95) the Hoare annotation is: (let ((.cse0 (= main_~lk5~0 1))) (or (and (= main_~lk6~0 1) .cse0) (and (= main_~p6~0 0) .cse0))) [2021-02-23 18:00:54,403 INFO L192 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: true [2021-02-23 18:00:54,403 INFO L185 CegarLoopUtils]: At program point L79-1(lines 29 104) the Hoare annotation is: (let ((.cse2 (= main_~p5~0 0)) (.cse4 (= main_~p6~0 0)) (.cse6 (= main_~lk3~0 1)) (.cse7 (= main_~p4~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~p3~0 0)) (.cse3 (= main_~lk6~0 1)) (.cse5 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse5) (and .cse0 .cse6 .cse4 .cse2) (and .cse4 .cse1 .cse2 .cse7) (and .cse6 .cse4 .cse7 .cse5) (and .cse1 .cse2 .cse3 .cse7) (and .cse1 .cse3 .cse7 .cse5) (and .cse0 .cse4 .cse1 .cse2) (and .cse4 .cse1 .cse7 .cse5) (and .cse0 .cse6 .cse2 .cse3) (and .cse0 .cse6 .cse3 .cse5) (and .cse6 .cse4 .cse2 .cse7) (and .cse6 .cse2 .cse3 .cse7) (and .cse0 .cse6 .cse4 .cse5) (and .cse6 .cse3 .cse7 .cse5) (and .cse0 .cse1 .cse3 .cse5))) [2021-02-23 18:00:54,403 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 6 109) the Hoare annotation is: true [2021-02-23 18:00:54,404 INFO L192 CegarLoopUtils]: At program point L38(line 38) the Hoare annotation is: true [2021-02-23 18:00:54,404 INFO L185 CegarLoopUtils]: At program point L96(line 96) the Hoare annotation is: (let ((.cse0 (= main_~lk5~0 1))) (or (and (= main_~lk6~0 1) .cse0) (and (= main_~p6~0 0) .cse0))) [2021-02-23 18:00:54,404 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 107) the Hoare annotation is: false [2021-02-23 18:00:54,404 INFO L192 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: true [2021-02-23 18:00:54,404 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 6 109) the Hoare annotation is: true [2021-02-23 18:00:54,404 INFO L192 CegarLoopUtils]: At program point L30-1(line 30) the Hoare annotation is: true [2021-02-23 18:00:54,404 INFO L192 CegarLoopUtils]: At program point L30-2(line 30) the Hoare annotation is: true [2021-02-23 18:00:54,405 INFO L185 CegarLoopUtils]: At program point L80(line 80) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1)) (.cse6 (= main_~lk3~0 1)) (.cse2 (= main_~p5~0 0)) (.cse4 (= main_~lk6~0 1)) (.cse7 (= main_~p6~0 0)) (.cse1 (= main_~p3~0 0)) (.cse3 (= main_~lk2~0 1)) (.cse5 (= main_~p4~0 0)) (.cse8 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4) (and .cse0 .cse7 .cse1 .cse3 .cse8) (and .cse0 .cse7 .cse1 .cse2 .cse3) (and .cse1 .cse3 .cse4 .cse5 .cse8) (and .cse6 .cse7 .cse3 .cse5 .cse8) (and .cse6 .cse7 .cse2 .cse3 .cse5) (and .cse0 .cse1 .cse3 .cse4 .cse8) (and .cse6 .cse3 .cse4 .cse5 .cse8) (and .cse0 .cse6 .cse7 .cse3 .cse8) (and .cse0 .cse6 .cse3 .cse4 .cse8) (and .cse7 .cse1 .cse2 .cse3 .cse5) (and .cse0 .cse6 .cse7 .cse2 .cse3) (and .cse6 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse1 .cse3 .cse5 .cse8))) [2021-02-23 18:00:54,405 INFO L192 CegarLoopUtils]: At program point L14(line 14) the Hoare annotation is: true [2021-02-23 18:00:54,405 INFO L192 CegarLoopUtils]: At program point L14-1(line 14) the Hoare annotation is: true [2021-02-23 18:00:54,405 INFO L192 CegarLoopUtils]: At program point L14-2(line 14) the Hoare annotation is: true [2021-02-23 18:00:54,405 INFO L192 CegarLoopUtils]: At program point L105(lines 7 109) the Hoare annotation is: true [2021-02-23 18:00:54,406 INFO L192 CegarLoopUtils]: At program point L31(lines 31 33) the Hoare annotation is: true [2021-02-23 18:00:54,406 INFO L185 CegarLoopUtils]: At program point L64-1(lines 29 104) 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 .cse2 .cse6 .cse4) (and .cse8 .cse0 .cse5 .cse6 .cse4) (and .cse7 .cse5 .cse1 .cse2 .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 .cse0 .cse5 .cse1 .cse2 .cse4) (and .cse8 .cse7 .cse1 .cse3 .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 .cse8 .cse0 .cse3 .cse6 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse7 .cse5 .cse2 .cse9 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4) (and .cse8 .cse7 .cse5 .cse1 .cse9))) [2021-02-23 18:00:54,406 INFO L185 CegarLoopUtils]: At program point L89-1(lines 29 104) the Hoare annotation is: (let ((.cse0 (= main_~lk6~0 1)) (.cse1 (= main_~lk5~0 1)) (.cse3 (= main_~p6~0 0)) (.cse2 (= main_~p5~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse0) (and .cse3 .cse1) (and .cse3 .cse2))) [2021-02-23 18:00:54,406 INFO L192 CegarLoopUtils]: At program point L23(line 23) the Hoare annotation is: true [2021-02-23 18:00:54,406 INFO L185 CegarLoopUtils]: At program point L56-1(lines 29 104) 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 18:00:54,406 INFO L192 CegarLoopUtils]: At program point L23-1(line 23) the Hoare annotation is: true [2021-02-23 18:00:54,407 INFO L192 CegarLoopUtils]: At program point L23-2(line 23) the Hoare annotation is: true [2021-02-23 18:00:54,407 INFO L185 CegarLoopUtils]: At program point L81(line 81) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1)) (.cse6 (= main_~lk3~0 1)) (.cse2 (= main_~p5~0 0)) (.cse4 (= main_~lk6~0 1)) (.cse7 (= main_~p6~0 0)) (.cse1 (= main_~p3~0 0)) (.cse3 (= main_~lk2~0 1)) (.cse5 (= main_~p4~0 0)) (.cse8 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4) (and .cse0 .cse7 .cse1 .cse3 .cse8) (and .cse0 .cse7 .cse1 .cse2 .cse3) (and .cse1 .cse3 .cse4 .cse5 .cse8) (and .cse6 .cse7 .cse3 .cse5 .cse8) (and .cse6 .cse7 .cse2 .cse3 .cse5) (and .cse0 .cse1 .cse3 .cse4 .cse8) (and .cse6 .cse3 .cse4 .cse5 .cse8) (and .cse0 .cse6 .cse7 .cse3 .cse8) (and .cse0 .cse6 .cse3 .cse4 .cse8) (and .cse7 .cse1 .cse2 .cse3 .cse5) (and .cse0 .cse6 .cse7 .cse2 .cse3) (and .cse6 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse1 .cse3 .cse5 .cse8))) [2021-02-23 18:00:54,407 INFO L192 CegarLoopUtils]: At program point L48(lines 48 50) the Hoare annotation is: true [2021-02-23 18:00:54,407 INFO L192 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: true [2021-02-23 18:00:54,407 INFO L185 CegarLoopUtils]: At program point L48-2(lines 29 104) the Hoare annotation is: (or (= main_~p1~0 0) (= main_~lk1~0 1)) [2021-02-23 18:00:54,407 INFO L192 CegarLoopUtils]: At program point L40(line 40) the Hoare annotation is: true [2021-02-23 18:00:54,407 INFO L185 CegarLoopUtils]: At program point L65(line 65) 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 18:00:54,408 INFO L185 CegarLoopUtils]: At program point L90(line 90) the Hoare annotation is: (let ((.cse2 (= main_~p5~0 0)) (.cse3 (= main_~lk6~0 1)) (.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~p6~0 0)) (.cse4 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4) (and .cse0 .cse2 .cse3) (and .cse0 .cse1 .cse4))) [2021-02-23 18:00:54,408 INFO L185 CegarLoopUtils]: At program point L57(line 57) 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 18:00:54,408 INFO L192 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: true [2021-02-23 18:00:54,408 INFO L192 CegarLoopUtils]: At program point L49(line 49) the Hoare annotation is: true [2021-02-23 18:00:54,408 INFO L185 CegarLoopUtils]: At program point L107(line 107) the Hoare annotation is: false [2021-02-23 18:00:54,408 INFO L185 CegarLoopUtils]: At program point L74-1(lines 29 104) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~lk3~0 1)) (.cse2 (= main_~p5~0 0)) (.cse4 (= main_~lk6~0 1)) (.cse8 (= main_~p2~0 0)) (.cse5 (= main_~p6~0 0)) (.cse6 (= main_~p3~0 0)) (.cse3 (= main_~lk2~0 1)) (.cse9 (= main_~p4~0 0)) (.cse7 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6 .cse3 .cse7) (and .cse0 .cse1 .cse5 .cse2 .cse8) (and .cse1 .cse4 .cse9 .cse7 .cse8) (and .cse6 .cse3 .cse4 .cse9 .cse7) (and .cse0 .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse4 .cse7 .cse8) (and .cse6 .cse2 .cse4 .cse9 .cse8) (and .cse0 .cse6 .cse4 .cse7 .cse8) (and .cse1 .cse3 .cse4 .cse9 .cse7) (and .cse0 .cse1 .cse5 .cse3 .cse7) (and .cse0 .cse1 .cse3 .cse4 .cse7) (and .cse0 .cse1 .cse5 .cse2 .cse3) (and .cse6 .cse4 .cse9 .cse7 .cse8) (and .cse5 .cse6 .cse9 .cse7 .cse8) (and .cse0 .cse5 .cse6 .cse2 .cse8) (and .cse0 .cse6 .cse2 .cse3 .cse4) (and .cse0 .cse6 .cse2 .cse4 .cse8) (and .cse6 .cse2 .cse3 .cse4 .cse9) (and .cse0 .cse5 .cse6 .cse2 .cse3) (and .cse1 .cse5 .cse3 .cse9 .cse7) (and .cse1 .cse5 .cse2 .cse3 .cse9) (and .cse0 .cse6 .cse3 .cse4 .cse7) (and .cse1 .cse5 .cse2 .cse9 .cse8) (and .cse5 .cse6 .cse2 .cse9 .cse8) (and .cse1 .cse2 .cse4 .cse9 .cse8) (and .cse1 .cse5 .cse9 .cse7 .cse8) (and .cse0 .cse1 .cse5 .cse7 .cse8) (and .cse5 .cse6 .cse2 .cse3 .cse9) (and .cse1 .cse2 .cse3 .cse4 .cse9) (and .cse0 .cse1 .cse2 .cse4 .cse8) (and .cse5 .cse6 .cse3 .cse9 .cse7))) [2021-02-23 18:00:54,408 INFO L192 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: true [2021-02-23 18:00:54,408 INFO L192 CegarLoopUtils]: At program point L8-1(line 8) the Hoare annotation is: true [2021-02-23 18:00:54,409 INFO L192 CegarLoopUtils]: At program point L99-1(lines 29 104) the Hoare annotation is: true [2021-02-23 18:00:54,409 INFO L185 CegarLoopUtils]: At program point L91(line 91) the Hoare annotation is: (let ((.cse2 (= main_~p5~0 0)) (.cse3 (= main_~lk6~0 1)) (.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~p6~0 0)) (.cse4 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4) (and .cse0 .cse2 .cse3) (and .cse0 .cse1 .cse4))) [2021-02-23 18:00:54,409 INFO L192 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: true [2021-02-23 18:00:54,409 INFO L192 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: true [2021-02-23 18:00:54,409 INFO L192 CegarLoopUtils]: At program point L17-2(line 17) the Hoare annotation is: true [2021-02-23 18:00:54,409 INFO L185 CegarLoopUtils]: At program point L108(line 108) the Hoare annotation is: false [2021-02-23 18:00:54,410 INFO L185 CegarLoopUtils]: At program point L75(line 75) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1)) (.cse10 (= main_~lk2~0 1)) (.cse1 (= main_~p6~0 0)) (.cse2 (= main_~p3~0 0)) (.cse9 (= main_~p5~0 0)) (.cse8 (= main_~lk3~0 1)) (.cse6 (= main_~lk6~0 1)) (.cse7 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~p2~0 0)) (.cse5 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse2 .cse6 .cse7 .cse3 .cse4 .cse5) (and .cse8 .cse9 .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse8 .cse6 .cse3 .cse4 .cse5) (and .cse0 .cse8 .cse1 .cse9 .cse10 .cse5) (and .cse0 .cse8 .cse9 .cse6 .cse4 .cse5) (and .cse0 .cse8 .cse1 .cse3 .cse4 .cse5) (and .cse8 .cse1 .cse9 .cse7 .cse4 .cse5) (and .cse0 .cse2 .cse10 .cse6 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse9 .cse10 .cse5) (and .cse0 .cse2 .cse6 .cse3 .cse4 .cse5) (and .cse0 .cse8 .cse10 .cse6 .cse3 .cse5) (and .cse8 .cse10 .cse6 .cse7 .cse3 .cse5) (and .cse0 .cse8 .cse1 .cse9 .cse4 .cse5) (and .cse1 .cse2 .cse10 .cse7 .cse3 .cse5) (and .cse1 .cse2 .cse7 .cse3 .cse4 .cse5) (and .cse8 .cse1 .cse9 .cse10 .cse7 .cse5) (and .cse8 .cse9 .cse10 .cse6 .cse7 .cse5) (and .cse0 .cse8 .cse1 .cse10 .cse3 .cse5) (and .cse2 .cse9 .cse10 .cse6 .cse7 .cse5) (and .cse0 .cse2 .cse9 .cse10 .cse6 .cse5) (and .cse2 .cse10 .cse6 .cse7 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse10 .cse3 .cse5) (and .cse0 .cse2 .cse9 .cse6 .cse4 .cse5) (and .cse8 .cse1 .cse10 .cse7 .cse3 .cse5) (and .cse2 .cse9 .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse8 .cse9 .cse10 .cse6 .cse5) (and .cse8 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse9 .cse4 .cse5) (and .cse1 .cse2 .cse9 .cse10 .cse7 .cse5) (and .cse1 .cse2 .cse9 .cse7 .cse4 .cse5) (and .cse8 .cse6 .cse7 .cse3 .cse4 .cse5))) [2021-02-23 18:00:54,410 INFO L192 CegarLoopUtils]: At program point L42(line 42) the Hoare annotation is: true [2021-02-23 18:00:54,410 INFO L192 CegarLoopUtils]: At program point L9(line 9) the Hoare annotation is: true [2021-02-23 18:00:54,410 INFO L185 CegarLoopUtils]: At program point L100(line 100) the Hoare annotation is: (= main_~lk6~0 1) [2021-02-23 18:00:54,410 INFO L185 CegarLoopUtils]: At program point L100-1(lines 7 109) the Hoare annotation is: false [2021-02-23 18:00:54,410 INFO L192 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: true [2021-02-23 18:00:54,410 INFO L185 CegarLoopUtils]: At program point L84-1(lines 29 104) the Hoare annotation is: (let ((.cse5 (= main_~lk6~0 1)) (.cse4 (= main_~p5~0 0)) (.cse1 (= main_~p4~0 0)) (.cse3 (= main_~lk4~0 1)) (.cse0 (= main_~p6~0 0)) (.cse2 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse4) (and .cse3 .cse5 .cse2) (and .cse4 .cse5 .cse1) (and .cse5 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse0 .cse4 .cse1) (and .cse3 .cse0 .cse2))) [2021-02-23 18:00:54,410 INFO L192 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: true [2021-02-23 18:00:54,411 INFO L185 CegarLoopUtils]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1)) (.cse10 (= main_~lk2~0 1)) (.cse1 (= main_~p6~0 0)) (.cse2 (= main_~p3~0 0)) (.cse9 (= main_~p5~0 0)) (.cse8 (= main_~lk3~0 1)) (.cse6 (= main_~lk6~0 1)) (.cse7 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~p2~0 0)) (.cse5 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse2 .cse6 .cse7 .cse3 .cse4 .cse5) (and .cse8 .cse9 .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse8 .cse6 .cse3 .cse4 .cse5) (and .cse0 .cse8 .cse1 .cse9 .cse10 .cse5) (and .cse0 .cse8 .cse9 .cse6 .cse4 .cse5) (and .cse0 .cse8 .cse1 .cse3 .cse4 .cse5) (and .cse8 .cse1 .cse9 .cse7 .cse4 .cse5) (and .cse0 .cse2 .cse10 .cse6 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse9 .cse10 .cse5) (and .cse0 .cse2 .cse6 .cse3 .cse4 .cse5) (and .cse0 .cse8 .cse10 .cse6 .cse3 .cse5) (and .cse8 .cse10 .cse6 .cse7 .cse3 .cse5) (and .cse0 .cse8 .cse1 .cse9 .cse4 .cse5) (and .cse1 .cse2 .cse10 .cse7 .cse3 .cse5) (and .cse1 .cse2 .cse7 .cse3 .cse4 .cse5) (and .cse8 .cse1 .cse9 .cse10 .cse7 .cse5) (and .cse8 .cse9 .cse10 .cse6 .cse7 .cse5) (and .cse0 .cse8 .cse1 .cse10 .cse3 .cse5) (and .cse2 .cse9 .cse10 .cse6 .cse7 .cse5) (and .cse0 .cse2 .cse9 .cse10 .cse6 .cse5) (and .cse2 .cse10 .cse6 .cse7 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse10 .cse3 .cse5) (and .cse0 .cse2 .cse9 .cse6 .cse4 .cse5) (and .cse8 .cse1 .cse10 .cse7 .cse3 .cse5) (and .cse2 .cse9 .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse8 .cse9 .cse10 .cse6 .cse5) (and .cse8 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse9 .cse4 .cse5) (and .cse1 .cse2 .cse9 .cse10 .cse7 .cse5) (and .cse1 .cse2 .cse9 .cse7 .cse4 .cse5) (and .cse8 .cse6 .cse7 .cse3 .cse4 .cse5))) [2021-02-23 18:00:54,411 INFO L185 CegarLoopUtils]: At program point L101(line 101) the Hoare annotation is: (= main_~lk6~0 1) [2021-02-23 18:00:54,411 INFO L185 CegarLoopUtils]: At program point L68-1(lines 29 104) the Hoare annotation is: (let ((.cse6 (= main_~lk6~0 1)) (.cse9 (= main_~p1~0 0)) (.cse10 (= main_~lk3~0 1)) (.cse3 (= main_~lk5~0 1)) (.cse0 (= main_~lk4~0 1)) (.cse4 (= main_~p2~0 0)) (.cse1 (= main_~p6~0 0)) (.cse2 (= main_~p3~0 0)) (.cse11 (= main_~p5~0 0)) (.cse8 (= main_~lk2~0 1)) (.cse7 (= main_~p4~0 0)) (.cse5 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse2 .cse6 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse8 .cse6 .cse3 .cse9) (and .cse10 .cse11 .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse10 .cse1 .cse11 .cse9 .cse4) (and .cse0 .cse10 .cse11 .cse6 .cse4 .cse5) (and .cse0 .cse10 .cse1 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse11 .cse6 .cse9 .cse4) (and .cse0 .cse2 .cse6 .cse3 .cse9 .cse4) (and .cse0 .cse10 .cse11 .cse6 .cse9 .cse4) (and .cse0 .cse10 .cse8 .cse6 .cse3 .cse5) (and .cse0 .cse10 .cse1 .cse3 .cse9 .cse4) (and .cse10 .cse11 .cse8 .cse6 .cse7 .cse9) (and .cse10 .cse1 .cse11 .cse8 .cse7 .cse5) (and .cse10 .cse11 .cse8 .cse6 .cse7 .cse5) (and .cse2 .cse11 .cse8 .cse6 .cse7 .cse9) (and .cse0 .cse10 .cse1 .cse8 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse8 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse11 .cse8 .cse9) (and .cse10 .cse1 .cse8 .cse7 .cse3 .cse5) (and .cse2 .cse11 .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse10 .cse11 .cse8 .cse6 .cse5) (and .cse10 .cse11 .cse6 .cse7 .cse9 .cse4) (and .cse1 .cse2 .cse11 .cse7 .cse4 .cse5) (and .cse10 .cse6 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse8 .cse3 .cse9) (and .cse2 .cse11 .cse6 .cse7 .cse9 .cse4) (and .cse10 .cse1 .cse11 .cse7 .cse9 .cse4) (and .cse0 .cse10 .cse8 .cse6 .cse3 .cse9) (and .cse0 .cse10 .cse6 .cse3 .cse4 .cse5) (and .cse0 .cse10 .cse1 .cse11 .cse8 .cse5) (and .cse0 .cse10 .cse6 .cse3 .cse9 .cse4) (and .cse10 .cse8 .cse6 .cse7 .cse3 .cse9) (and .cse10 .cse1 .cse7 .cse3 .cse9 .cse4) (and .cse10 .cse1 .cse11 .cse7 .cse4 .cse5) (and .cse1 .cse2 .cse7 .cse3 .cse9 .cse4) (and .cse1 .cse2 .cse8 .cse7 .cse3 .cse9) (and .cse0 .cse2 .cse8 .cse6 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse11 .cse8 .cse5) (and .cse0 .cse2 .cse6 .cse3 .cse4 .cse5) (and .cse10 .cse8 .cse6 .cse7 .cse3 .cse5) (and .cse0 .cse2 .cse11 .cse8 .cse6 .cse9) (and .cse10 .cse6 .cse7 .cse3 .cse9 .cse4) (and .cse0 .cse10 .cse1 .cse11 .cse4 .cse5) (and .cse1 .cse2 .cse8 .cse7 .cse3 .cse5) (and .cse10 .cse1 .cse8 .cse7 .cse3 .cse9) (and .cse0 .cse1 .cse2 .cse11 .cse9 .cse4) (and .cse2 .cse6 .cse7 .cse3 .cse9 .cse4) (and .cse0 .cse10 .cse11 .cse8 .cse6 .cse9) (and .cse1 .cse2 .cse7 .cse3 .cse4 .cse5) (and .cse10 .cse1 .cse11 .cse8 .cse7 .cse9) (and .cse2 .cse8 .cse6 .cse7 .cse3 .cse9) (and .cse2 .cse11 .cse8 .cse6 .cse7 .cse5) (and .cse0 .cse2 .cse11 .cse8 .cse6 .cse5) (and .cse2 .cse8 .cse6 .cse7 .cse3 .cse5) (and .cse0 .cse10 .cse1 .cse8 .cse3 .cse9) (and .cse0 .cse2 .cse11 .cse6 .cse4 .cse5) (and .cse1 .cse2 .cse11 .cse8 .cse7 .cse9) (and .cse1 .cse2 .cse11 .cse7 .cse9 .cse4) (and .cse0 .cse10 .cse1 .cse11 .cse8 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse9 .cse4) (and .cse10 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse11 .cse4 .cse5) (and .cse1 .cse2 .cse11 .cse8 .cse7 .cse5))) [2021-02-23 18:00:54,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:00:54 BoogieIcfgContainer [2021-02-23 18:00:54,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:00:54,426 INFO L168 Benchmark]: Toolchain (without parser) took 43550.29 ms. Allocated memory was 151.0 MB in the beginning and 415.2 MB in the end (delta: 264.2 MB). Free memory was 127.5 MB in the beginning and 230.9 MB in the end (delta: -103.4 MB). Peak memory consumption was 257.5 MB. Max. memory is 8.0 GB. [2021-02-23 18:00:54,426 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:00:54,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.93 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 116.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 18:00:54,427 INFO L168 Benchmark]: Boogie Preprocessor took 47.09 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 115.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 18:00:54,427 INFO L168 Benchmark]: RCFGBuilder took 786.07 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 124.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-23 18:00:54,428 INFO L168 Benchmark]: TraceAbstraction took 42362.06 ms. Allocated memory was 151.0 MB in the beginning and 415.2 MB in the end (delta: 264.2 MB). Free memory was 124.6 MB in the beginning and 230.9 MB in the end (delta: -106.3 MB). Peak memory consumption was 254.4 MB. Max. memory is 8.0 GB. [2021-02-23 18:00:54,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 328.93 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 116.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.09 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 115.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 786.07 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 124.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 42362.06 ms. Allocated memory was 151.0 MB in the beginning and 415.2 MB in the end (delta: 264.2 MB). Free memory was 124.6 MB in the beginning and 230.9 MB in the end (delta: -106.3 MB). Peak memory consumption was 254.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 107]: 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: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.2s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 33.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1447 SDtfs, 1651 SDslu, 184 SDs, 0 SdLazy, 1044 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1111occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 535 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 87 LocationsWithAnnotation, 87 PreInvPairs, 2143 NumberOfFragments, 5883 HoareAnnotationTreeSize, 87 FomulaSimplifications, 423099 FormulaSimplificationTreeSizeReduction, 4.6s HoareSimplificationTime, 87 FomulaSimplificationsInter, 12518 FormulaSimplificationTreeSizeReductionInter, 28.3s 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...