/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/psyco/psyco_security.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:11:08,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:11:08,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:11:08,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 00:11:08,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 00:11:08,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 00:11:08,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 00:11:08,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 00:11:08,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 00:11:08,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 00:11:08,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 00:11:08,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 00:11:08,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 00:11:08,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 00:11:08,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 00:11:08,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 00:11:08,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 00:11:08,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-24 00:11:08,406 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:11:08,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:11:08,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:11:08,408 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:11:08,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:11:08,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:11:08,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:11:08,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:11:08,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:11:08,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:11:08,410 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:11:08,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:11:08,410 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:11:08,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:11:08,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:11:08,411 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:11:08,411 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:11:08,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:11:08,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:11:08,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:11:08,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:11:08,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:11:08,413 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:11:08,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:11:08,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:11:08,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:11:08,839 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:11:08,839 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:11:08,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_security.c [2021-02-24 00:11:08,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcc5cbe89/1f1f751f0ffe4b4abf3bca60eb458589/FLAGcc43b58e2 [2021-02-24 00:11:09,677 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:11:09,678 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_security.c [2021-02-24 00:11:09,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcc5cbe89/1f1f751f0ffe4b4abf3bca60eb458589/FLAGcc43b58e2 [2021-02-24 00:11:10,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcc5cbe89/1f1f751f0ffe4b4abf3bca60eb458589 [2021-02-24 00:11:10,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:11:10,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:11:10,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:11:10,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:11:10,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:11:10,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:11:10" (1/1) ... [2021-02-24 00:11:10,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3218ad3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:11:10, skipping insertion in model container [2021-02-24 00:11:10,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:11:10" (1/1) ... [2021-02-24 00:11:10,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:11:10,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:11:10,253 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_security.c[12744,12757] [2021-02-24 00:11:10,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:11:10,270 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:11:10,311 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_security.c[12744,12757] [2021-02-24 00:11:10,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:11:10,357 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:11:10,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:11:10 WrapperNode [2021-02-24 00:11:10,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:11:10,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:11:10,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:11:10,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:11:10,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:11:10" (1/1) ... [2021-02-24 00:11:10,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:11:10" (1/1) ... [2021-02-24 00:11:10,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:11:10" (1/1) ... [2021-02-24 00:11:10,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:11:10" (1/1) ... [2021-02-24 00:11:10,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:11:10" (1/1) ... [2021-02-24 00:11:10,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:11:10" (1/1) ... [2021-02-24 00:11:10,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:11:10" (1/1) ... [2021-02-24 00:11:10,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:11:10,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:11:10,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:11:10,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:11:10,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:11:10" (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 [2021-02-24 00:11:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:11:10,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:11:10,605 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:11:10,605 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:11:10,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 00:11:10,606 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:11:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:11:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:11:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:11:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:11:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:11:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:11:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:11:10,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:11:10,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:11:10,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:11:11,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:11:11,609 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-02-24 00:11:11,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:11:11 BoogieIcfgContainer [2021-02-24 00:11:11,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:11:11,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:11:11,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:11:11,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:11:11,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:11:10" (1/3) ... [2021-02-24 00:11:11,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac41c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:11:11, skipping insertion in model container [2021-02-24 00:11:11,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:11:10" (2/3) ... [2021-02-24 00:11:11,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac41c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:11:11, skipping insertion in model container [2021-02-24 00:11:11,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:11:11" (3/3) ... [2021-02-24 00:11:11,621 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_security.c [2021-02-24 00:11:11,628 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:11:11,633 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:11:11,653 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:11:11,690 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:11:11,690 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:11:11,691 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:11:11,691 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:11:11,691 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:11:11,691 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:11:11,691 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:11:11,691 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:11:11,712 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states. [2021-02-24 00:11:11,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-24 00:11:11,723 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:11:11,724 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] [2021-02-24 00:11:11,724 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:11:11,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:11:11,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1599487208, now seen corresponding path program 1 times [2021-02-24 00:11:11,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:11:11,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815184063] [2021-02-24 00:11:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:11:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:11,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:11,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:11,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:11,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:12,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:11:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:12,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:12,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:12,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:11:12,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815184063] [2021-02-24 00:11:12,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:11:12,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 00:11:12,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168687828] [2021-02-24 00:11:12,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 00:11:12,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:11:12,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 00:11:12,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 00:11:12,091 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 3 states. [2021-02-24 00:11:12,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:11:12,373 INFO L93 Difference]: Finished difference Result 378 states and 516 transitions. [2021-02-24 00:11:12,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 00:11:12,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2021-02-24 00:11:12,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:11:12,390 INFO L225 Difference]: With dead ends: 378 [2021-02-24 00:11:12,391 INFO L226 Difference]: Without dead ends: 186 [2021-02-24 00:11:12,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 00:11:12,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-02-24 00:11:12,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2021-02-24 00:11:12,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2021-02-24 00:11:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 221 transitions. [2021-02-24 00:11:12,513 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 221 transitions. Word has length 30 [2021-02-24 00:11:12,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:11:12,514 INFO L480 AbstractCegarLoop]: Abstraction has 186 states and 221 transitions. [2021-02-24 00:11:12,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 00:11:12,515 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 221 transitions. [2021-02-24 00:11:12,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-24 00:11:12,518 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:11:12,519 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] [2021-02-24 00:11:12,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:11:12,519 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:11:12,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:11:12,520 INFO L82 PathProgramCache]: Analyzing trace with hash 869436777, now seen corresponding path program 1 times [2021-02-24 00:11:12,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:11:12,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569444428] [2021-02-24 00:11:12,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:11:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:12,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:12,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:12,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:12,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:11:12,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:12,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:12,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:11:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:12,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:12,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:11:12,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569444428] [2021-02-24 00:11:12,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:11:12,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 00:11:12,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658082725] [2021-02-24 00:11:12,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 00:11:12,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:11:12,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 00:11:12,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 00:11:12,754 INFO L87 Difference]: Start difference. First operand 186 states and 221 transitions. Second operand 4 states. [2021-02-24 00:11:13,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:11:13,563 INFO L93 Difference]: Finished difference Result 354 states and 425 transitions. [2021-02-24 00:11:13,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 00:11:13,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2021-02-24 00:11:13,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:11:13,567 INFO L225 Difference]: With dead ends: 354 [2021-02-24 00:11:13,567 INFO L226 Difference]: Without dead ends: 189 [2021-02-24 00:11:13,569 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 [2021-02-24 00:11:13,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-02-24 00:11:13,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2021-02-24 00:11:13,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2021-02-24 00:11:13,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 224 transitions. [2021-02-24 00:11:13,620 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 224 transitions. Word has length 31 [2021-02-24 00:11:13,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:11:13,620 INFO L480 AbstractCegarLoop]: Abstraction has 189 states and 224 transitions. [2021-02-24 00:11:13,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 00:11:13,621 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 224 transitions. [2021-02-24 00:11:13,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-02-24 00:11:13,622 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:11:13,622 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:11:13,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:11:13,623 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:11:13,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:11:13,624 INFO L82 PathProgramCache]: Analyzing trace with hash -625938074, now seen corresponding path program 1 times [2021-02-24 00:11:13,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:11:13,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893410952] [2021-02-24 00:11:13,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:11:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:13,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:13,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:13,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:13,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:11:13,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:13,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:13,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:11:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:13,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:13,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:13,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:11:13,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893410952] [2021-02-24 00:11:13,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:11:13,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 00:11:13,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293701638] [2021-02-24 00:11:13,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 00:11:13,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:11:13,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 00:11:13,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 00:11:13,767 INFO L87 Difference]: Start difference. First operand 189 states and 224 transitions. Second operand 4 states. [2021-02-24 00:11:14,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:11:14,459 INFO L93 Difference]: Finished difference Result 362 states and 434 transitions. [2021-02-24 00:11:14,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 00:11:14,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2021-02-24 00:11:14,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:11:14,462 INFO L225 Difference]: With dead ends: 362 [2021-02-24 00:11:14,462 INFO L226 Difference]: Without dead ends: 195 [2021-02-24 00:11:14,463 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 [2021-02-24 00:11:14,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-02-24 00:11:14,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2021-02-24 00:11:14,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2021-02-24 00:11:14,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 228 transitions. [2021-02-24 00:11:14,513 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 228 transitions. Word has length 40 [2021-02-24 00:11:14,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:11:14,514 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 228 transitions. [2021-02-24 00:11:14,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 00:11:14,514 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 228 transitions. [2021-02-24 00:11:14,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-02-24 00:11:14,516 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:11:14,516 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:11:14,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 00:11:14,516 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:11:14,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:11:14,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1084579848, now seen corresponding path program 1 times [2021-02-24 00:11:14,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:11:14,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757569255] [2021-02-24 00:11:14,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:11:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:14,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:14,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:14,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:14,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:11:14,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:14,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:11:14,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:14,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:11:14,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:14,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:14,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:11:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:14,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:14,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:14,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:11:14,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757569255] [2021-02-24 00:11:14,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:11:14,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 00:11:14,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542960101] [2021-02-24 00:11:14,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 00:11:14,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:11:14,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 00:11:14,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:11:14,698 INFO L87 Difference]: Start difference. First operand 193 states and 228 transitions. Second operand 6 states. [2021-02-24 00:11:15,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:11:15,981 INFO L93 Difference]: Finished difference Result 563 states and 669 transitions. [2021-02-24 00:11:15,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 00:11:15,982 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2021-02-24 00:11:15,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:11:15,985 INFO L225 Difference]: With dead ends: 563 [2021-02-24 00:11:15,985 INFO L226 Difference]: Without dead ends: 374 [2021-02-24 00:11:15,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:11:15,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-02-24 00:11:16,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 302. [2021-02-24 00:11:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2021-02-24 00:11:16,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 367 transitions. [2021-02-24 00:11:16,055 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 367 transitions. Word has length 47 [2021-02-24 00:11:16,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:11:16,058 INFO L480 AbstractCegarLoop]: Abstraction has 302 states and 367 transitions. [2021-02-24 00:11:16,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 00:11:16,058 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 367 transitions. [2021-02-24 00:11:16,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-24 00:11:16,067 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:11:16,067 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:11:16,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 00:11:16,070 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:11:16,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:11:16,070 INFO L82 PathProgramCache]: Analyzing trace with hash -408398613, now seen corresponding path program 1 times [2021-02-24 00:11:16,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:11:16,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342737782] [2021-02-24 00:11:16,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:11:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:16,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:16,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:16,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:16,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:11:16,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:16,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:16,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:11:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:16,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:16,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:16,222 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-02-24 00:11:16,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342737782] [2021-02-24 00:11:16,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:11:16,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 00:11:16,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104067013] [2021-02-24 00:11:16,223 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 00:11:16,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:11:16,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 00:11:16,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 00:11:16,225 INFO L87 Difference]: Start difference. First operand 302 states and 367 transitions. Second operand 4 states. [2021-02-24 00:11:16,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:11:16,501 INFO L93 Difference]: Finished difference Result 508 states and 624 transitions. [2021-02-24 00:11:16,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 00:11:16,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2021-02-24 00:11:16,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:11:16,503 INFO L225 Difference]: With dead ends: 508 [2021-02-24 00:11:16,504 INFO L226 Difference]: Without dead ends: 228 [2021-02-24 00:11:16,505 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 [2021-02-24 00:11:16,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-02-24 00:11:16,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2021-02-24 00:11:16,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2021-02-24 00:11:16,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 273 transitions. [2021-02-24 00:11:16,552 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 273 transitions. Word has length 51 [2021-02-24 00:11:16,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:11:16,552 INFO L480 AbstractCegarLoop]: Abstraction has 228 states and 273 transitions. [2021-02-24 00:11:16,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 00:11:16,552 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 273 transitions. [2021-02-24 00:11:16,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-02-24 00:11:16,553 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:11:16,554 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:11:16,554 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 00:11:16,554 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:11:16,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:11:16,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1537742930, now seen corresponding path program 1 times [2021-02-24 00:11:16,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:11:16,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972643165] [2021-02-24 00:11:16,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:11:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:16,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:16,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:16,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:16,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:11:16,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:16,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:16,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:11:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:16,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:16,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:16,652 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-02-24 00:11:16,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972643165] [2021-02-24 00:11:16,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:11:16,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 00:11:16,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776674688] [2021-02-24 00:11:16,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 00:11:16,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:11:16,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 00:11:16,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 00:11:16,656 INFO L87 Difference]: Start difference. First operand 228 states and 273 transitions. Second operand 4 states. [2021-02-24 00:11:17,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:11:17,199 INFO L93 Difference]: Finished difference Result 423 states and 510 transitions. [2021-02-24 00:11:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 00:11:17,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2021-02-24 00:11:17,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:11:17,202 INFO L225 Difference]: With dead ends: 423 [2021-02-24 00:11:17,202 INFO L226 Difference]: Without dead ends: 253 [2021-02-24 00:11:17,203 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 [2021-02-24 00:11:17,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-02-24 00:11:17,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 231. [2021-02-24 00:11:17,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2021-02-24 00:11:17,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 268 transitions. [2021-02-24 00:11:17,243 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 268 transitions. Word has length 59 [2021-02-24 00:11:17,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:11:17,244 INFO L480 AbstractCegarLoop]: Abstraction has 231 states and 268 transitions. [2021-02-24 00:11:17,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 00:11:17,244 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 268 transitions. [2021-02-24 00:11:17,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-02-24 00:11:17,245 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:11:17,246 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:11:17,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 00:11:17,246 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:11:17,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:11:17,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1480422480, now seen corresponding path program 1 times [2021-02-24 00:11:17,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:11:17,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048229626] [2021-02-24 00:11:17,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:11:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:17,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:17,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:17,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:17,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:11:17,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:17,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:17,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:11:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:17,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:17,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:17,333 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-02-24 00:11:17,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048229626] [2021-02-24 00:11:17,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:11:17,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 00:11:17,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060801094] [2021-02-24 00:11:17,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 00:11:17,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:11:17,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 00:11:17,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 00:11:17,336 INFO L87 Difference]: Start difference. First operand 231 states and 268 transitions. Second operand 4 states. [2021-02-24 00:11:17,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:11:17,714 INFO L93 Difference]: Finished difference Result 374 states and 438 transitions. [2021-02-24 00:11:17,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 00:11:17,714 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2021-02-24 00:11:17,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:11:17,717 INFO L225 Difference]: With dead ends: 374 [2021-02-24 00:11:17,718 INFO L226 Difference]: Without dead ends: 204 [2021-02-24 00:11:17,719 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 [2021-02-24 00:11:17,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-02-24 00:11:17,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2021-02-24 00:11:17,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2021-02-24 00:11:17,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 231 transitions. [2021-02-24 00:11:17,756 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 231 transitions. Word has length 60 [2021-02-24 00:11:17,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:11:17,758 INFO L480 AbstractCegarLoop]: Abstraction has 202 states and 231 transitions. [2021-02-24 00:11:17,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 00:11:17,758 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 231 transitions. [2021-02-24 00:11:17,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-24 00:11:17,759 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:11:17,759 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:11:17,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 00:11:17,760 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:11:17,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:11:17,761 INFO L82 PathProgramCache]: Analyzing trace with hash -2138296303, now seen corresponding path program 1 times [2021-02-24 00:11:17,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:11:17,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659189727] [2021-02-24 00:11:17,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:11:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:17,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:17,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:17,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:17,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:11:17,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:17,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:17,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:11:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:17,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:17,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:17,894 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-02-24 00:11:17,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659189727] [2021-02-24 00:11:17,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:11:17,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 00:11:17,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145120627] [2021-02-24 00:11:17,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 00:11:17,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:11:17,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 00:11:17,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 00:11:17,900 INFO L87 Difference]: Start difference. First operand 202 states and 231 transitions. Second operand 4 states. [2021-02-24 00:11:18,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:11:18,212 INFO L93 Difference]: Finished difference Result 302 states and 347 transitions. [2021-02-24 00:11:18,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 00:11:18,212 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2021-02-24 00:11:18,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:11:18,214 INFO L225 Difference]: With dead ends: 302 [2021-02-24 00:11:18,214 INFO L226 Difference]: Without dead ends: 161 [2021-02-24 00:11:18,215 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 [2021-02-24 00:11:18,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-02-24 00:11:18,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2021-02-24 00:11:18,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2021-02-24 00:11:18,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 179 transitions. [2021-02-24 00:11:18,245 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 179 transitions. Word has length 62 [2021-02-24 00:11:18,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:11:18,245 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 179 transitions. [2021-02-24 00:11:18,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 00:11:18,245 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 179 transitions. [2021-02-24 00:11:18,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-02-24 00:11:18,246 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:11:18,246 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:11:18,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 00:11:18,247 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:11:18,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:11:18,247 INFO L82 PathProgramCache]: Analyzing trace with hash -575095811, now seen corresponding path program 1 times [2021-02-24 00:11:18,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:11:18,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296508776] [2021-02-24 00:11:18,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:11:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:18,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:18,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:18,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:18,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:11:18,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:18,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:18,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:11:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:11:18,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:11:18,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:11:18,343 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-02-24 00:11:18,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1296508776] [2021-02-24 00:11:18,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:11:18,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 00:11:18,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296563483] [2021-02-24 00:11:18,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 00:11:18,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:11:18,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 00:11:18,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 00:11:18,346 INFO L87 Difference]: Start difference. First operand 161 states and 179 transitions. Second operand 4 states. [2021-02-24 00:11:18,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:11:18,650 INFO L93 Difference]: Finished difference Result 251 states and 283 transitions. [2021-02-24 00:11:18,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 00:11:18,651 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2021-02-24 00:11:18,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:11:18,651 INFO L225 Difference]: With dead ends: 251 [2021-02-24 00:11:18,651 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 00:11:18,653 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 [2021-02-24 00:11:18,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 00:11:18,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 00:11:18,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 00:11:18,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 00:11:18,653 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2021-02-24 00:11:18,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:11:18,654 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 00:11:18,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 00:11:18,654 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 00:11:18,654 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 00:11:18,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 00:11:18,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 00:11:20,666 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 14 [2021-02-24 00:11:20,942 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 16 [2021-02-24 00:11:21,440 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 17 [2021-02-24 00:11:22,641 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 16 [2021-02-24 00:11:24,618 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 12 [2021-02-24 00:11:25,125 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 17 [2021-02-24 00:11:25,130 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-02-24 00:11:25,130 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-02-24 00:11:25,130 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-02-24 00:11:25,131 INFO L192 CegarLoopUtils]: At program point L4-3(line 4) the Hoare annotation is: true [2021-02-24 00:11:25,131 INFO L192 CegarLoopUtils]: At program point L4-4(line 4) the Hoare annotation is: true [2021-02-24 00:11:25,131 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:11:25,131 INFO L192 CegarLoopUtils]: At program point L4-5(line 4) the Hoare annotation is: true [2021-02-24 00:11:25,131 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 00:11:25,131 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-02-24 00:11:25,131 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-24 00:11:25,131 INFO L192 CegarLoopUtils]: At program point L11(line 11) the Hoare annotation is: true [2021-02-24 00:11:25,131 INFO L192 CegarLoopUtils]: At program point L10(line 10) the Hoare annotation is: true [2021-02-24 00:11:25,132 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~m_update~0 |old(~m_update~0)|) (= ~m_initSign~0 |old(~m_initSign~0)|) (= |old(#length)| |#length|) (= ~m_sign~0 |old(~m_sign~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~m_verify~0 |old(~m_verify~0)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~m_Signature~0 |old(~m_Signature~0)|) (= ~m_initVerify~0 |old(~m_initVerify~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2021-02-24 00:11:25,132 INFO L192 CegarLoopUtils]: At program point L9(line 9) the Hoare annotation is: true [2021-02-24 00:11:25,132 INFO L192 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: true [2021-02-24 00:11:25,132 INFO L192 CegarLoopUtils]: At program point L4(line 4) the Hoare annotation is: true [2021-02-24 00:11:25,132 INFO L192 CegarLoopUtils]: At program point L4-1(line 4) the Hoare annotation is: true [2021-02-24 00:11:25,132 INFO L192 CegarLoopUtils]: At program point L4-2(line 4) the Hoare annotation is: true [2021-02-24 00:11:25,133 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:11:25,133 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:11:25,133 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:11:25,133 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 00:11:25,133 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 00:11:25,133 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 15 392) the Hoare annotation is: true [2021-02-24 00:11:25,133 INFO L185 CegarLoopUtils]: At program point L366(line 366) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,134 INFO L185 CegarLoopUtils]: At program point L366-1(lines 366 381) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,134 INFO L185 CegarLoopUtils]: At program point L366-2(line 366) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,134 INFO L185 CegarLoopUtils]: At program point L366-3(line 366) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,134 INFO L185 CegarLoopUtils]: At program point L234(line 234) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,134 INFO L185 CegarLoopUtils]: At program point L234-1(lines 234 249) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,134 INFO L185 CegarLoopUtils]: At program point L168(lines 168 179) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,135 INFO L185 CegarLoopUtils]: At program point L234-2(line 234) the Hoare annotation is: (and (<= 3 main_~q~0) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,135 INFO L185 CegarLoopUtils]: At program point L234-3(line 234) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,135 INFO L185 CegarLoopUtils]: At program point L102(line 102) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,135 INFO L185 CegarLoopUtils]: At program point L102-1(lines 102 117) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,135 INFO L185 CegarLoopUtils]: At program point L36(lines 36 38) the Hoare annotation is: (= main_~q~0 0) [2021-02-24 00:11:25,135 INFO L185 CegarLoopUtils]: At program point L102-2(line 102) the Hoare annotation is: (= main_~q~0 2) [2021-02-24 00:11:25,135 INFO L185 CegarLoopUtils]: At program point L102-3(line 102) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,136 INFO L185 CegarLoopUtils]: At program point L334(line 334) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,136 INFO L185 CegarLoopUtils]: At program point L334-1(lines 334 349) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,136 INFO L185 CegarLoopUtils]: At program point L268(lines 268 279) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,136 INFO L185 CegarLoopUtils]: At program point L334-2(line 334) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,136 INFO L185 CegarLoopUtils]: At program point L334-3(line 334) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,136 INFO L185 CegarLoopUtils]: At program point L202(line 202) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,137 INFO L185 CegarLoopUtils]: At program point L202-1(lines 202 217) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,137 INFO L185 CegarLoopUtils]: At program point L136(lines 136 147) the Hoare annotation is: (and (not (= 2 main_~this_state~0)) (= main_~q~0 2)) [2021-02-24 00:11:25,137 INFO L185 CegarLoopUtils]: At program point L202-2(line 202) the Hoare annotation is: (= main_~q~0 3) [2021-02-24 00:11:25,137 INFO L185 CegarLoopUtils]: At program point L202-3(line 202) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,137 INFO L185 CegarLoopUtils]: At program point L368(lines 368 379) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,137 INFO L185 CegarLoopUtils]: At program point L302(line 302) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,138 INFO L185 CegarLoopUtils]: At program point L302-1(lines 302 317) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,138 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 15 392) the Hoare annotation is: true [2021-02-24 00:11:25,138 INFO L185 CegarLoopUtils]: At program point L236(lines 236 247) the Hoare annotation is: (and (<= 3 main_~q~0) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,138 INFO L185 CegarLoopUtils]: At program point L302-2(line 302) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,138 INFO L185 CegarLoopUtils]: At program point L302-3(line 302) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,138 INFO L185 CegarLoopUtils]: At program point L104(lines 104 115) the Hoare annotation is: (= main_~q~0 2) [2021-02-24 00:11:25,138 INFO L185 CegarLoopUtils]: At program point L336(lines 336 347) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,139 INFO L185 CegarLoopUtils]: At program point L270(line 270) the Hoare annotation is: false [2021-02-24 00:11:25,139 INFO L185 CegarLoopUtils]: At program point L204(lines 204 215) the Hoare annotation is: (= main_~q~0 3) [2021-02-24 00:11:25,139 INFO L185 CegarLoopUtils]: At program point L72(lines 72 74) the Hoare annotation is: false [2021-02-24 00:11:25,139 INFO L185 CegarLoopUtils]: At program point L370(line 370) the Hoare annotation is: false [2021-02-24 00:11:25,139 INFO L185 CegarLoopUtils]: At program point L304(lines 304 315) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,139 INFO L185 CegarLoopUtils]: At program point L172(lines 172 174) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,139 INFO L185 CegarLoopUtils]: At program point L40(line 40) the Hoare annotation is: (= main_~q~0 0) [2021-02-24 00:11:25,140 INFO L185 CegarLoopUtils]: At program point L272(lines 272 274) the Hoare annotation is: false [2021-02-24 00:11:25,140 INFO L185 CegarLoopUtils]: At program point L140(lines 140 142) the Hoare annotation is: (and (not (= 2 main_~this_state~0)) (= main_~q~0 2)) [2021-02-24 00:11:25,140 INFO L185 CegarLoopUtils]: At program point L372(lines 372 374) the Hoare annotation is: false [2021-02-24 00:11:25,140 INFO L185 CegarLoopUtils]: At program point L240(lines 240 242) the Hoare annotation is: (and (<= 3 main_~q~0) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,140 INFO L185 CegarLoopUtils]: At program point L108(lines 108 110) the Hoare annotation is: (= main_~q~0 2) [2021-02-24 00:11:25,140 INFO L185 CegarLoopUtils]: At program point L42(line 42) the Hoare annotation is: (= main_~q~0 2) [2021-02-24 00:11:25,140 INFO L185 CegarLoopUtils]: At program point L373(lines 15 392) the Hoare annotation is: false [2021-02-24 00:11:25,141 INFO L185 CegarLoopUtils]: At program point L340(lines 340 342) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,141 INFO L185 CegarLoopUtils]: At program point L208(lines 208 210) the Hoare annotation is: (= main_~q~0 3) [2021-02-24 00:11:25,141 INFO L192 CegarLoopUtils]: At program point L76(line 76) the Hoare annotation is: true [2021-02-24 00:11:25,141 INFO L185 CegarLoopUtils]: At program point L308(lines 308 310) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,141 INFO L192 CegarLoopUtils]: At program point L176(line 176) the Hoare annotation is: true [2021-02-24 00:11:25,141 INFO L185 CegarLoopUtils]: At program point L276(line 276) the Hoare annotation is: false [2021-02-24 00:11:25,141 INFO L192 CegarLoopUtils]: At program point L144(line 144) the Hoare annotation is: true [2021-02-24 00:11:25,141 INFO L185 CegarLoopUtils]: At program point L376(line 376) the Hoare annotation is: false [2021-02-24 00:11:25,142 INFO L192 CegarLoopUtils]: At program point L244(line 244) the Hoare annotation is: true [2021-02-24 00:11:25,142 INFO L185 CegarLoopUtils]: At program point L112(line 112) the Hoare annotation is: (= main_~q~0 2) [2021-02-24 00:11:25,142 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 391) the Hoare annotation is: false [2021-02-24 00:11:25,142 INFO L185 CegarLoopUtils]: At program point L344(line 344) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,142 INFO L185 CegarLoopUtils]: At program point L278(line 278) the Hoare annotation is: false [2021-02-24 00:11:25,142 INFO L185 CegarLoopUtils]: At program point L212(line 212) the Hoare annotation is: (= main_~q~0 3) [2021-02-24 00:11:25,143 INFO L185 CegarLoopUtils]: At program point L378(line 378) the Hoare annotation is: false [2021-02-24 00:11:25,143 INFO L185 CegarLoopUtils]: At program point L312(line 312) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,143 INFO L185 CegarLoopUtils]: At program point L114(line 114) the Hoare annotation is: (= main_~q~0 3) [2021-02-24 00:11:25,143 INFO L185 CegarLoopUtils]: At program point L346(line 346) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,143 INFO L185 CegarLoopUtils]: At program point L214(line 214) the Hoare annotation is: (<= 4 main_~q~0) [2021-02-24 00:11:25,143 INFO L185 CegarLoopUtils]: At program point L82(line 82) the Hoare annotation is: false [2021-02-24 00:11:25,143 INFO L185 CegarLoopUtils]: At program point L49(lines 49 100) the Hoare annotation is: (or (and (= main_~q~0 3) (= 2 main_~this_state~0)) (and (= 0 main_~this_state~0) (= main_~q~0 2)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2021-02-24 00:11:25,144 INFO L185 CegarLoopUtils]: At program point L82-1(lines 82 97) the Hoare annotation is: false [2021-02-24 00:11:25,144 INFO L185 CegarLoopUtils]: At program point L82-2(line 82) the Hoare annotation is: false [2021-02-24 00:11:25,144 INFO L185 CegarLoopUtils]: At program point L82-3(line 82) the Hoare annotation is: false [2021-02-24 00:11:25,144 INFO L185 CegarLoopUtils]: At program point L314(line 314) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,144 INFO L185 CegarLoopUtils]: At program point L50(line 50) the Hoare annotation is: false [2021-02-24 00:11:25,144 INFO L185 CegarLoopUtils]: At program point L50-1(lines 50 65) the Hoare annotation is: false [2021-02-24 00:11:25,144 INFO L185 CegarLoopUtils]: At program point L50-2(line 50) the Hoare annotation is: (not (= 2 main_~this_state~0)) [2021-02-24 00:11:25,144 INFO L185 CegarLoopUtils]: At program point L50-3(line 50) the Hoare annotation is: false [2021-02-24 00:11:25,145 INFO L185 CegarLoopUtils]: At program point L150(line 150) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,145 INFO L185 CegarLoopUtils]: At program point L150-1(lines 150 165) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,145 INFO L185 CegarLoopUtils]: At program point L84(lines 84 95) the Hoare annotation is: false [2021-02-24 00:11:25,145 INFO L185 CegarLoopUtils]: At program point L150-2(line 150) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,145 INFO L185 CegarLoopUtils]: At program point L150-3(line 150) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,145 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (= main_~q~0 0) [2021-02-24 00:11:25,145 INFO L185 CegarLoopUtils]: At program point L250(line 250) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,146 INFO L185 CegarLoopUtils]: At program point L250-1(lines 250 265) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,146 INFO L185 CegarLoopUtils]: At program point L250-2(line 250) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,146 INFO L185 CegarLoopUtils]: At program point L250-3(line 250) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,146 INFO L185 CegarLoopUtils]: At program point L118(line 118) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,146 INFO L185 CegarLoopUtils]: At program point L118-1(lines 118 133) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,146 INFO L185 CegarLoopUtils]: At program point L52(lines 52 63) the Hoare annotation is: (not (= 2 main_~this_state~0)) [2021-02-24 00:11:25,147 INFO L185 CegarLoopUtils]: At program point L118-2(line 118) the Hoare annotation is: (= main_~q~0 2) [2021-02-24 00:11:25,147 INFO L185 CegarLoopUtils]: At program point L118-3(line 118) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,147 INFO L185 CegarLoopUtils]: At program point L383(lines 24 387) the Hoare annotation is: (or (= main_~q~0 0) (and (= main_~q~0 3) (= 2 main_~this_state~0)) (and (= 0 main_~this_state~0) (= main_~q~0 2)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2021-02-24 00:11:25,147 INFO L185 CegarLoopUtils]: At program point L350(line 350) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,147 INFO L185 CegarLoopUtils]: At program point L350-1(lines 350 365) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,147 INFO L185 CegarLoopUtils]: At program point L350-2(line 350) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,148 INFO L185 CegarLoopUtils]: At program point L350-3(line 350) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,148 INFO L185 CegarLoopUtils]: At program point L218(line 218) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,148 INFO L185 CegarLoopUtils]: At program point L185(lines 185 284) the Hoare annotation is: (or (and (= main_~q~0 3) (= 2 main_~this_state~0)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2021-02-24 00:11:25,148 INFO L185 CegarLoopUtils]: At program point L218-1(lines 218 233) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,148 INFO L185 CegarLoopUtils]: At program point L152(lines 152 163) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,148 INFO L185 CegarLoopUtils]: At program point L218-2(line 218) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,148 INFO L185 CegarLoopUtils]: At program point L218-3(line 218) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,149 INFO L185 CegarLoopUtils]: At program point L318(line 318) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,149 INFO L185 CegarLoopUtils]: At program point L285(lines 285 384) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,149 INFO L185 CegarLoopUtils]: At program point L318-1(lines 318 333) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,149 INFO L185 CegarLoopUtils]: At program point L252(lines 252 263) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,149 INFO L185 CegarLoopUtils]: At program point L318-2(line 318) the Hoare annotation is: (not (= 2 main_~this_state~0)) [2021-02-24 00:11:25,149 INFO L185 CegarLoopUtils]: At program point L318-3(line 318) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,150 INFO L185 CegarLoopUtils]: At program point L186(line 186) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,150 INFO L185 CegarLoopUtils]: At program point L186-1(lines 186 201) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,150 INFO L185 CegarLoopUtils]: At program point L120(lines 120 131) the Hoare annotation is: (= main_~q~0 2) [2021-02-24 00:11:25,150 INFO L185 CegarLoopUtils]: At program point L186-2(line 186) the Hoare annotation is: (= main_~q~0 3) [2021-02-24 00:11:25,150 INFO L185 CegarLoopUtils]: At program point L186-3(line 186) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,150 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (= main_~q~0 0) [2021-02-24 00:11:25,150 INFO L185 CegarLoopUtils]: At program point L352(lines 352 363) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,151 INFO L185 CegarLoopUtils]: At program point L286(line 286) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,151 INFO L185 CegarLoopUtils]: At program point L286-1(lines 286 301) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,151 INFO L185 CegarLoopUtils]: At program point L220(lines 220 231) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,151 INFO L185 CegarLoopUtils]: At program point L286-2(line 286) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,151 INFO L185 CegarLoopUtils]: At program point L286-3(line 286) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,151 INFO L185 CegarLoopUtils]: At program point L88(lines 88 90) the Hoare annotation is: false [2021-02-24 00:11:25,152 INFO L185 CegarLoopUtils]: At program point L320(lines 320 331) the Hoare annotation is: (not (= 2 main_~this_state~0)) [2021-02-24 00:11:25,152 INFO L185 CegarLoopUtils]: At program point L254(line 254) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,152 INFO L185 CegarLoopUtils]: At program point L188(lines 188 199) the Hoare annotation is: (= main_~q~0 3) [2021-02-24 00:11:25,152 INFO L185 CegarLoopUtils]: At program point L56(lines 56 58) the Hoare annotation is: (not (= 2 main_~this_state~0)) [2021-02-24 00:11:25,152 INFO L185 CegarLoopUtils]: At program point L354(line 354) the Hoare annotation is: false [2021-02-24 00:11:25,152 INFO L185 CegarLoopUtils]: At program point L288(lines 288 299) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,152 INFO L185 CegarLoopUtils]: At program point L156(lines 156 158) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,153 INFO L185 CegarLoopUtils]: At program point L24-2(lines 24 387) the Hoare annotation is: (or (and (not (= 2 main_~this_state~0)) (= main_~q~0 0)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2021-02-24 00:11:25,153 INFO L192 CegarLoopUtils]: At program point L24-3(lines 24 387) the Hoare annotation is: true [2021-02-24 00:11:25,153 INFO L185 CegarLoopUtils]: At program point L256(lines 256 258) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,153 INFO L185 CegarLoopUtils]: At program point L124(lines 124 126) the Hoare annotation is: (= main_~q~0 2) [2021-02-24 00:11:25,153 INFO L185 CegarLoopUtils]: At program point L356(lines 356 358) the Hoare annotation is: false [2021-02-24 00:11:25,153 INFO L185 CegarLoopUtils]: At program point L224(lines 224 226) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,153 INFO L192 CegarLoopUtils]: At program point L92(line 92) the Hoare annotation is: true [2021-02-24 00:11:25,154 INFO L185 CegarLoopUtils]: At program point L324(lines 324 326) the Hoare annotation is: (not (= 2 main_~this_state~0)) [2021-02-24 00:11:25,154 INFO L185 CegarLoopUtils]: At program point L192(lines 192 194) the Hoare annotation is: (= main_~q~0 3) [2021-02-24 00:11:25,154 INFO L192 CegarLoopUtils]: At program point L60(line 60) the Hoare annotation is: true [2021-02-24 00:11:25,154 INFO L185 CegarLoopUtils]: At program point L391(line 391) the Hoare annotation is: false [2021-02-24 00:11:25,154 INFO L185 CegarLoopUtils]: At program point L292(lines 292 294) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,154 INFO L192 CegarLoopUtils]: At program point L160(line 160) the Hoare annotation is: true [2021-02-24 00:11:25,154 INFO L185 CegarLoopUtils]: At program point L260(line 260) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,154 INFO L185 CegarLoopUtils]: At program point L128(line 128) the Hoare annotation is: (= main_~q~0 2) [2021-02-24 00:11:25,155 INFO L185 CegarLoopUtils]: At program point L29(lines 29 48) the Hoare annotation is: (or (= main_~q~0 0) (and (= main_~q~0 3) (= 2 main_~this_state~0)) (and (= 0 main_~this_state~0) (= main_~q~0 2)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2021-02-24 00:11:25,155 INFO L185 CegarLoopUtils]: At program point L360(line 360) the Hoare annotation is: false [2021-02-24 00:11:25,155 INFO L185 CegarLoopUtils]: At program point L228(line 228) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,155 INFO L185 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: (= main_~q~0 0) [2021-02-24 00:11:25,155 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 15 392) the Hoare annotation is: true [2021-02-24 00:11:25,155 INFO L185 CegarLoopUtils]: At program point L30-1(lines 30 45) the Hoare annotation is: (= main_~q~0 0) [2021-02-24 00:11:25,155 INFO L185 CegarLoopUtils]: At program point L30-2(line 30) the Hoare annotation is: (= main_~q~0 0) [2021-02-24 00:11:25,156 INFO L185 CegarLoopUtils]: At program point L30-3(line 30) the Hoare annotation is: (= main_~q~0 0) [2021-02-24 00:11:25,156 INFO L192 CegarLoopUtils]: At program point L328(line 328) the Hoare annotation is: true [2021-02-24 00:11:25,156 INFO L185 CegarLoopUtils]: At program point L262(line 262) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,156 INFO L185 CegarLoopUtils]: At program point L196(line 196) the Hoare annotation is: (= main_~q~0 3) [2021-02-24 00:11:25,156 INFO L185 CegarLoopUtils]: At program point L130(line 130) the Hoare annotation is: (<= 4 main_~q~0) [2021-02-24 00:11:25,156 INFO L185 CegarLoopUtils]: At program point L362(line 362) the Hoare annotation is: false [2021-02-24 00:11:25,156 INFO L185 CegarLoopUtils]: At program point L296(line 296) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,157 INFO L185 CegarLoopUtils]: At program point L230(line 230) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,157 INFO L185 CegarLoopUtils]: At program point L32(lines 32 43) the Hoare annotation is: (= main_~q~0 0) [2021-02-24 00:11:25,157 INFO L185 CegarLoopUtils]: At program point L198(line 198) the Hoare annotation is: (= main_~q~0 3) [2021-02-24 00:11:25,157 INFO L185 CegarLoopUtils]: At program point L66(line 66) the Hoare annotation is: false [2021-02-24 00:11:25,157 INFO L185 CegarLoopUtils]: At program point L66-1(lines 66 81) the Hoare annotation is: false [2021-02-24 00:11:25,157 INFO L185 CegarLoopUtils]: At program point L66-2(line 66) the Hoare annotation is: false [2021-02-24 00:11:25,158 INFO L185 CegarLoopUtils]: At program point L66-3(line 66) the Hoare annotation is: false [2021-02-24 00:11:25,158 INFO L185 CegarLoopUtils]: At program point L298(line 298) the Hoare annotation is: (and (= main_~q~0 3) (= 3 main_~this_state~0)) [2021-02-24 00:11:25,158 INFO L185 CegarLoopUtils]: At program point L166(line 166) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,158 INFO L185 CegarLoopUtils]: At program point L166-1(lines 166 181) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,158 INFO L185 CegarLoopUtils]: At program point L166-2(line 166) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,158 INFO L185 CegarLoopUtils]: At program point L166-3(line 166) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,158 INFO L185 CegarLoopUtils]: At program point L266(line 266) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,159 INFO L185 CegarLoopUtils]: At program point L266-1(lines 266 281) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,159 INFO L185 CegarLoopUtils]: At program point L266-2(line 266) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,159 INFO L185 CegarLoopUtils]: At program point L266-3(line 266) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2021-02-24 00:11:25,159 INFO L185 CegarLoopUtils]: At program point L134(line 134) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,159 INFO L185 CegarLoopUtils]: At program point L101(lines 101 184) the Hoare annotation is: (or (and (= main_~q~0 3) (= 2 main_~this_state~0)) (and (= 0 main_~this_state~0) (= main_~q~0 2)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2021-02-24 00:11:25,159 INFO L185 CegarLoopUtils]: At program point L134-1(lines 134 149) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,160 INFO L185 CegarLoopUtils]: At program point L68(lines 68 79) the Hoare annotation is: false [2021-02-24 00:11:25,160 INFO L185 CegarLoopUtils]: At program point L134-2(line 134) the Hoare annotation is: (and (not (= 2 main_~this_state~0)) (= main_~q~0 2)) [2021-02-24 00:11:25,160 INFO L185 CegarLoopUtils]: At program point L134-3(line 134) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2021-02-24 00:11:25,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:11:25 BoogieIcfgContainer [2021-02-24 00:11:25,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 00:11:25,185 INFO L168 Benchmark]: Toolchain (without parser) took 15166.87 ms. Allocated memory was 166.7 MB in the beginning and 351.3 MB in the end (delta: 184.5 MB). Free memory was 142.4 MB in the beginning and 136.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 205.2 MB. Max. memory is 8.0 GB. [2021-02-24 00:11:25,185 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 166.7 MB. Free memory is still 145.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 00:11:25,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.71 ms. Allocated memory is still 166.7 MB. Free memory was 141.3 MB in the beginning and 129.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-24 00:11:25,187 INFO L168 Benchmark]: Boogie Preprocessor took 108.33 ms. Allocated memory is still 166.7 MB. Free memory was 129.8 MB in the beginning and 127.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 00:11:25,187 INFO L168 Benchmark]: RCFGBuilder took 1140.58 ms. Allocated memory is still 166.7 MB. Free memory was 127.7 MB in the beginning and 89.4 MB in the end (delta: 38.3 MB). Peak memory consumption was 38.8 MB. Max. memory is 8.0 GB. [2021-02-24 00:11:25,188 INFO L168 Benchmark]: TraceAbstraction took 13569.88 ms. Allocated memory was 166.7 MB in the beginning and 351.3 MB in the end (delta: 184.5 MB). Free memory was 88.9 MB in the beginning and 136.9 MB in the end (delta: -48.0 MB). Peak memory consumption was 151.7 MB. Max. memory is 8.0 GB. [2021-02-24 00:11:25,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 166.7 MB. Free memory is still 145.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 330.71 ms. Allocated memory is still 166.7 MB. Free memory was 141.3 MB in the beginning and 129.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 108.33 ms. Allocated memory is still 166.7 MB. Free memory was 129.8 MB in the beginning and 127.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1140.58 ms. Allocated memory is still 166.7 MB. Free memory was 127.7 MB in the beginning and 89.4 MB in the end (delta: 38.3 MB). Peak memory consumption was 38.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13569.88 ms. Allocated memory was 166.7 MB in the beginning and 351.3 MB in the end (delta: 184.5 MB). Free memory was 88.9 MB in the beginning and 136.9 MB in the end (delta: -48.0 MB). Peak memory consumption was 151.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 391]: 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: 24]: Loop Invariant Derived loop invariant: (!(2 == this_state) && q == 0) || (4 <= q && 3 == this_state) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((q == 0 || (q == 3 && 2 == this_state)) || (0 == this_state && q == 2)) || (4 <= q && 3 == this_state) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 15]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 203 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.9s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1874 SDtfs, 2433 SDslu, 190 SDs, 0 SdLazy, 1590 SolverSat, 93 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=302occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 98 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 200 LocationsWithAnnotation, 200 PreInvPairs, 364 NumberOfFragments, 1024 HoareAnnotationTreeSize, 200 FomulaSimplifications, 9392 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 200 FomulaSimplificationsInter, 8382 FormulaSimplificationTreeSizeReductionInter, 5.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 446 NumberOfCodeBlocks, 446 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 437 ConstructedInterpolants, 0 QuantifiedInterpolants, 52991 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 43/43 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...