/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/psyco/psyco_security.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 03:51:55,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 03:51:55,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 03:51:55,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 03:51:55,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 03:51:55,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 03:51:55,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 03:51:55,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 03:51:55,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 03:51:55,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 03:51:55,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 03:51:55,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 03:51:55,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 03:51:55,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 03:51:55,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 03:51:55,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 03:51:55,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 03:51:55,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 03:51:55,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 03:51:55,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 03:51:55,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 03:51:55,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 03:51:55,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 03:51:55,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 03:51:55,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 03:51:55,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 03:51:55,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 03:51:55,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 03:51:55,422 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 03:51:55,457 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 03:51:55,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 03:51:55,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 03:51:55,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 03:51:55,461 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 03:51:55,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 03:51:55,461 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 03:51:55,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 03:51:55,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 03:51:55,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 03:51:55,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 03:51:55,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 03:51:55,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 03:51:55,463 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 03:51:55,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 03:51:55,463 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 03:51:55,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 03:51:55,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 03:51:55,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 03:51:55,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 03:51:55,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 03:51:55,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 03:51:55,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 03:51:55,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 03:51:55,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 03:51:55,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 03:51:55,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 03:51:55,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 03:51:55,467 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 03:51:55,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 03:51:55,792 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 03:51:55,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 03:51:55,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 03:51:55,823 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 03:51:55,825 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 03:51:55,826 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_security.c [2020-07-20 03:51:55,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50aa8dc85/8f781a22ed4943a68d973c268d8f6ee4/FLAG1833f0f41 [2020-07-20 03:51:56,374 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 03:51:56,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_security.c [2020-07-20 03:51:56,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50aa8dc85/8f781a22ed4943a68d973c268d8f6ee4/FLAG1833f0f41 [2020-07-20 03:51:56,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50aa8dc85/8f781a22ed4943a68d973c268d8f6ee4 [2020-07-20 03:51:56,760 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 03:51:56,763 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 03:51:56,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 03:51:56,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 03:51:56,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 03:51:56,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:51:56" (1/1) ... [2020-07-20 03:51:56,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69598dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:56, skipping insertion in model container [2020-07-20 03:51:56,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:51:56" (1/1) ... [2020-07-20 03:51:56,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 03:51:56,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 03:51:57,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 03:51:57,097 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 03:51:57,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 03:51:57,256 INFO L208 MainTranslator]: Completed translation [2020-07-20 03:51:57,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:57 WrapperNode [2020-07-20 03:51:57,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 03:51:57,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 03:51:57,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 03:51:57,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 03:51:57,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:57" (1/1) ... [2020-07-20 03:51:57,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:57" (1/1) ... [2020-07-20 03:51:57,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:57" (1/1) ... [2020-07-20 03:51:57,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:57" (1/1) ... [2020-07-20 03:51:57,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:57" (1/1) ... [2020-07-20 03:51:57,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:57" (1/1) ... [2020-07-20 03:51:57,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:57" (1/1) ... [2020-07-20 03:51:57,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 03:51:57,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 03:51:57,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 03:51:57,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 03:51:57,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 03:51:57,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 03:51:57,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 03:51:57,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 03:51:57,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 03:51:57,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 03:51:57,372 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 03:51:57,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 03:51:57,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 03:51:57,912 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 03:51:57,913 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-07-20 03:51:57,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:51:57 BoogieIcfgContainer [2020-07-20 03:51:57,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 03:51:57,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 03:51:57,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 03:51:57,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 03:51:57,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 03:51:56" (1/3) ... [2020-07-20 03:51:57,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b73937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:51:57, skipping insertion in model container [2020-07-20 03:51:57,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:57" (2/3) ... [2020-07-20 03:51:57,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b73937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:51:57, skipping insertion in model container [2020-07-20 03:51:57,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:51:57" (3/3) ... [2020-07-20 03:51:57,929 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_security.c [2020-07-20 03:51:57,942 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 03:51:57,951 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 03:51:57,966 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 03:51:57,997 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 03:51:57,997 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 03:51:57,997 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 03:51:57,998 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 03:51:57,998 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 03:51:57,999 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 03:51:57,999 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 03:51:57,999 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 03:51:58,021 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-07-20 03:51:58,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-20 03:51:58,029 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:58,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:58,031 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:58,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:58,039 INFO L82 PathProgramCache]: Analyzing trace with hash -105811556, now seen corresponding path program 1 times [2020-07-20 03:51:58,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:58,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87840389] [2020-07-20 03:51:58,053 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38145ac0 [2020-07-20 03:51:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:58,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:58,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87840389] [2020-07-20 03:51:58,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:51:58,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 03:51:58,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852345997] [2020-07-20 03:51:58,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:51:58,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:58,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:51:58,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 03:51:58,328 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 3 states. [2020-07-20 03:51:58,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:58,433 INFO L93 Difference]: Finished difference Result 160 states and 298 transitions. [2020-07-20 03:51:58,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:51:58,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-07-20 03:51:58,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:58,462 INFO L225 Difference]: With dead ends: 160 [2020-07-20 03:51:58,463 INFO L226 Difference]: Without dead ends: 78 [2020-07-20 03:51:58,471 INFO L675 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 [2020-07-20 03:51:58,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-07-20 03:51:58,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-07-20 03:51:58,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-20 03:51:58,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2020-07-20 03:51:58,563 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 113 transitions. Word has length 13 [2020-07-20 03:51:58,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:58,563 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 113 transitions. [2020-07-20 03:51:58,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:51:58,564 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 113 transitions. [2020-07-20 03:51:58,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-20 03:51:58,568 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:58,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:58,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 03:51:58,570 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:58,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:58,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1547300989, now seen corresponding path program 1 times [2020-07-20 03:51:58,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:58,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761526209] [2020-07-20 03:51:58,572 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38145ac0 [2020-07-20 03:51:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:58,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:58,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761526209] [2020-07-20 03:51:58,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:51:58,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:51:58,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626542695] [2020-07-20 03:51:58,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 03:51:58,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:58,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 03:51:58,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 03:51:58,720 INFO L87 Difference]: Start difference. First operand 78 states and 113 transitions. Second operand 4 states. [2020-07-20 03:51:59,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:59,139 INFO L93 Difference]: Finished difference Result 153 states and 224 transitions. [2020-07-20 03:51:59,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 03:51:59,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-07-20 03:51:59,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:59,142 INFO L225 Difference]: With dead ends: 153 [2020-07-20 03:51:59,143 INFO L226 Difference]: Without dead ends: 81 [2020-07-20 03:51:59,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 03:51:59,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-20 03:51:59,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-07-20 03:51:59,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-20 03:51:59,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2020-07-20 03:51:59,172 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 14 [2020-07-20 03:51:59,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:59,173 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2020-07-20 03:51:59,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 03:51:59,173 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2020-07-20 03:51:59,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-20 03:51:59,177 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:59,177 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:59,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 03:51:59,178 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:59,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:59,178 INFO L82 PathProgramCache]: Analyzing trace with hash 555004895, now seen corresponding path program 1 times [2020-07-20 03:51:59,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:59,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526139510] [2020-07-20 03:51:59,181 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38145ac0 [2020-07-20 03:51:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:59,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:59,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526139510] [2020-07-20 03:51:59,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:51:59,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:51:59,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166652852] [2020-07-20 03:51:59,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 03:51:59,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:59,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 03:51:59,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 03:51:59,267 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand 4 states. [2020-07-20 03:51:59,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:59,362 INFO L93 Difference]: Finished difference Result 146 states and 213 transitions. [2020-07-20 03:51:59,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 03:51:59,362 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-07-20 03:51:59,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:59,364 INFO L225 Difference]: With dead ends: 146 [2020-07-20 03:51:59,364 INFO L226 Difference]: Without dead ends: 72 [2020-07-20 03:51:59,365 INFO L675 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 [2020-07-20 03:51:59,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-07-20 03:51:59,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-07-20 03:51:59,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-07-20 03:51:59,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 102 transitions. [2020-07-20 03:51:59,378 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 102 transitions. Word has length 19 [2020-07-20 03:51:59,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:59,378 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 102 transitions. [2020-07-20 03:51:59,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 03:51:59,379 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 102 transitions. [2020-07-20 03:51:59,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-20 03:51:59,381 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:59,381 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] [2020-07-20 03:51:59,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 03:51:59,382 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:59,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:59,383 INFO L82 PathProgramCache]: Analyzing trace with hash -624681896, now seen corresponding path program 1 times [2020-07-20 03:51:59,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:59,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631444023] [2020-07-20 03:51:59,384 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38145ac0 [2020-07-20 03:51:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:59,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:59,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631444023] [2020-07-20 03:51:59,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:51:59,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:51:59,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083419433] [2020-07-20 03:51:59,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 03:51:59,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:59,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 03:51:59,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 03:51:59,443 INFO L87 Difference]: Start difference. First operand 72 states and 102 transitions. Second operand 4 states. [2020-07-20 03:51:59,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:59,717 INFO L93 Difference]: Finished difference Result 192 states and 280 transitions. [2020-07-20 03:51:59,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 03:51:59,718 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-07-20 03:51:59,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:59,720 INFO L225 Difference]: With dead ends: 192 [2020-07-20 03:51:59,720 INFO L226 Difference]: Without dead ends: 122 [2020-07-20 03:51:59,721 INFO L675 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 [2020-07-20 03:51:59,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-07-20 03:51:59,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 108. [2020-07-20 03:51:59,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-07-20 03:51:59,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2020-07-20 03:51:59,735 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 153 transitions. Word has length 22 [2020-07-20 03:51:59,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:59,738 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 153 transitions. [2020-07-20 03:51:59,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 03:51:59,739 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 153 transitions. [2020-07-20 03:51:59,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-20 03:51:59,740 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:59,740 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] [2020-07-20 03:51:59,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 03:51:59,742 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:59,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:59,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1531598883, now seen corresponding path program 1 times [2020-07-20 03:51:59,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:59,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841099556] [2020-07-20 03:51:59,743 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38145ac0 [2020-07-20 03:51:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:59,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:59,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841099556] [2020-07-20 03:51:59,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:51:59,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:51:59,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111092848] [2020-07-20 03:51:59,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 03:51:59,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:59,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 03:51:59,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 03:51:59,837 INFO L87 Difference]: Start difference. First operand 108 states and 153 transitions. Second operand 4 states. [2020-07-20 03:52:00,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:00,039 INFO L93 Difference]: Finished difference Result 183 states and 260 transitions. [2020-07-20 03:52:00,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 03:52:00,040 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-07-20 03:52:00,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:00,043 INFO L225 Difference]: With dead ends: 183 [2020-07-20 03:52:00,043 INFO L226 Difference]: Without dead ends: 87 [2020-07-20 03:52:00,048 INFO L675 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 [2020-07-20 03:52:00,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-07-20 03:52:00,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2020-07-20 03:52:00,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-07-20 03:52:00,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 117 transitions. [2020-07-20 03:52:00,073 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 117 transitions. Word has length 23 [2020-07-20 03:52:00,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:00,074 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 117 transitions. [2020-07-20 03:52:00,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 03:52:00,074 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 117 transitions. [2020-07-20 03:52:00,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-20 03:52:00,078 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:52:00,079 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:52:00,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 03:52:00,079 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:52:00,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:52:00,080 INFO L82 PathProgramCache]: Analyzing trace with hash -576284788, now seen corresponding path program 1 times [2020-07-20 03:52:00,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:52:00,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651426565] [2020-07-20 03:52:00,083 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38145ac0 [2020-07-20 03:52:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:00,179 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 03:52:00,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651426565] [2020-07-20 03:52:00,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:52:00,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:52:00,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997129921] [2020-07-20 03:52:00,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 03:52:00,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:00,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 03:52:00,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 03:52:00,184 INFO L87 Difference]: Start difference. First operand 85 states and 117 transitions. Second operand 4 states. [2020-07-20 03:52:00,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:00,284 INFO L93 Difference]: Finished difference Result 134 states and 190 transitions. [2020-07-20 03:52:00,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 03:52:00,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-07-20 03:52:00,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:00,287 INFO L225 Difference]: With dead ends: 134 [2020-07-20 03:52:00,289 INFO L226 Difference]: Without dead ends: 70 [2020-07-20 03:52:00,291 INFO L675 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 [2020-07-20 03:52:00,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-07-20 03:52:00,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-07-20 03:52:00,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-20 03:52:00,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2020-07-20 03:52:00,302 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 29 [2020-07-20 03:52:00,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:00,306 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2020-07-20 03:52:00,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 03:52:00,308 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2020-07-20 03:52:00,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-20 03:52:00,312 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:52:00,312 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] [2020-07-20 03:52:00,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-20 03:52:00,313 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:52:00,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:52:00,321 INFO L82 PathProgramCache]: Analyzing trace with hash -31288535, now seen corresponding path program 1 times [2020-07-20 03:52:00,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:52:00,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374045099] [2020-07-20 03:52:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38145ac0 [2020-07-20 03:52:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:00,387 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 03:52:00,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374045099] [2020-07-20 03:52:00,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:52:00,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:52:00,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410151924] [2020-07-20 03:52:00,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 03:52:00,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:00,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 03:52:00,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 03:52:00,390 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand 4 states. [2020-07-20 03:52:00,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:00,609 INFO L93 Difference]: Finished difference Result 158 states and 228 transitions. [2020-07-20 03:52:00,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 03:52:00,610 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-07-20 03:52:00,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:00,612 INFO L225 Difference]: With dead ends: 158 [2020-07-20 03:52:00,612 INFO L226 Difference]: Without dead ends: 111 [2020-07-20 03:52:00,613 INFO L675 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 [2020-07-20 03:52:00,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-07-20 03:52:00,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2020-07-20 03:52:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-07-20 03:52:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2020-07-20 03:52:00,622 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 30 [2020-07-20 03:52:00,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:00,623 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2020-07-20 03:52:00,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 03:52:00,623 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2020-07-20 03:52:00,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-20 03:52:00,627 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:52:00,627 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] [2020-07-20 03:52:00,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-20 03:52:00,628 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:52:00,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:52:00,628 INFO L82 PathProgramCache]: Analyzing trace with hash 180888733, now seen corresponding path program 1 times [2020-07-20 03:52:00,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:52:00,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119641469] [2020-07-20 03:52:00,629 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38145ac0 [2020-07-20 03:52:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:00,670 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 03:52:00,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119641469] [2020-07-20 03:52:00,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:52:00,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:52:00,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4416354] [2020-07-20 03:52:00,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 03:52:00,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:00,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 03:52:00,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 03:52:00,672 INFO L87 Difference]: Start difference. First operand 99 states and 138 transitions. Second operand 4 states. [2020-07-20 03:52:00,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:00,809 INFO L93 Difference]: Finished difference Result 166 states and 232 transitions. [2020-07-20 03:52:00,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 03:52:00,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-07-20 03:52:00,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:00,812 INFO L225 Difference]: With dead ends: 166 [2020-07-20 03:52:00,813 INFO L226 Difference]: Without dead ends: 92 [2020-07-20 03:52:00,813 INFO L675 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 [2020-07-20 03:52:00,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-07-20 03:52:00,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-07-20 03:52:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-07-20 03:52:00,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 120 transitions. [2020-07-20 03:52:00,825 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 120 transitions. Word has length 31 [2020-07-20 03:52:00,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:00,825 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 120 transitions. [2020-07-20 03:52:00,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 03:52:00,826 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 120 transitions. [2020-07-20 03:52:00,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-20 03:52:00,827 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:52:00,827 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] [2020-07-20 03:52:00,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-20 03:52:00,828 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:52:00,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:52:00,828 INFO L82 PathProgramCache]: Analyzing trace with hash 317242888, now seen corresponding path program 1 times [2020-07-20 03:52:00,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:52:00,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351308699] [2020-07-20 03:52:00,829 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38145ac0 [2020-07-20 03:52:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:00,874 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 03:52:00,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351308699] [2020-07-20 03:52:00,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:52:00,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:52:00,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901822147] [2020-07-20 03:52:00,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 03:52:00,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:00,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 03:52:00,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 03:52:00,876 INFO L87 Difference]: Start difference. First operand 92 states and 120 transitions. Second operand 4 states. [2020-07-20 03:52:01,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:01,011 INFO L93 Difference]: Finished difference Result 139 states and 184 transitions. [2020-07-20 03:52:01,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 03:52:01,012 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-07-20 03:52:01,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:01,013 INFO L225 Difference]: With dead ends: 139 [2020-07-20 03:52:01,013 INFO L226 Difference]: Without dead ends: 72 [2020-07-20 03:52:01,014 INFO L675 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 [2020-07-20 03:52:01,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-07-20 03:52:01,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-07-20 03:52:01,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-07-20 03:52:01,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 91 transitions. [2020-07-20 03:52:01,021 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 91 transitions. Word has length 31 [2020-07-20 03:52:01,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:01,021 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 91 transitions. [2020-07-20 03:52:01,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 03:52:01,021 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 91 transitions. [2020-07-20 03:52:01,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-20 03:52:01,022 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:52:01,023 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] [2020-07-20 03:52:01,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-20 03:52:01,023 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:52:01,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:52:01,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1695196396, now seen corresponding path program 1 times [2020-07-20 03:52:01,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:52:01,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272167596] [2020-07-20 03:52:01,024 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38145ac0 [2020-07-20 03:52:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:01,074 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 03:52:01,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272167596] [2020-07-20 03:52:01,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:52:01,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:52:01,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905631154] [2020-07-20 03:52:01,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 03:52:01,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:01,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 03:52:01,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 03:52:01,077 INFO L87 Difference]: Start difference. First operand 72 states and 91 transitions. Second operand 4 states. [2020-07-20 03:52:01,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:01,202 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2020-07-20 03:52:01,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 03:52:01,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-07-20 03:52:01,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:01,203 INFO L225 Difference]: With dead ends: 74 [2020-07-20 03:52:01,203 INFO L226 Difference]: Without dead ends: 70 [2020-07-20 03:52:01,204 INFO L675 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 [2020-07-20 03:52:01,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-07-20 03:52:01,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-07-20 03:52:01,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-20 03:52:01,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 88 transitions. [2020-07-20 03:52:01,218 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 88 transitions. Word has length 32 [2020-07-20 03:52:01,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:01,218 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 88 transitions. [2020-07-20 03:52:01,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 03:52:01,219 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2020-07-20 03:52:01,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-20 03:52:01,219 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:52:01,219 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] [2020-07-20 03:52:01,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-20 03:52:01,220 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:52:01,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:52:01,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1000030502, now seen corresponding path program 1 times [2020-07-20 03:52:01,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:52:01,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933459003] [2020-07-20 03:52:01,224 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38145ac0 [2020-07-20 03:52:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:01,296 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 03:52:01,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933459003] [2020-07-20 03:52:01,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:52:01,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:52:01,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357965615] [2020-07-20 03:52:01,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 03:52:01,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:01,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 03:52:01,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 03:52:01,299 INFO L87 Difference]: Start difference. First operand 70 states and 88 transitions. Second operand 4 states. [2020-07-20 03:52:01,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:01,422 INFO L93 Difference]: Finished difference Result 111 states and 143 transitions. [2020-07-20 03:52:01,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 03:52:01,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-07-20 03:52:01,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:01,427 INFO L225 Difference]: With dead ends: 111 [2020-07-20 03:52:01,427 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 03:52:01,428 INFO L675 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 [2020-07-20 03:52:01,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 03:52:01,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 03:52:01,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 03:52:01,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 03:52:01,428 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-07-20 03:52:01,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:01,428 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 03:52:01,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 03:52:01,429 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 03:52:01,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 03:52:01,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-20 03:52:01,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 03:52:01,619 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 03:52:01,620 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~m_initSign~0 |old(~m_initSign~0)|) (= ~m_verify~0 |old(~m_verify~0)|) (= ~m_Signature~0 |old(~m_Signature~0)|) (= ~m_sign~0 |old(~m_sign~0)|) (= ~m_initVerify~0 |old(~m_initVerify~0)|) (= ~m_update~0 |old(~m_update~0)|)) [2020-07-20 03:52:01,620 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 03:52:01,620 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 03:52:01,620 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 03:52:01,620 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 03:52:01,621 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 03:52:01,621 INFO L268 CegarLoopResult]: For program point L316(lines 316 331) no Hoare annotation was computed. [2020-07-20 03:52:01,621 INFO L268 CegarLoopResult]: For program point L283(lines 283 382) no Hoare annotation was computed. [2020-07-20 03:52:01,621 INFO L268 CegarLoopResult]: For program point L250(lines 250 261) no Hoare annotation was computed. [2020-07-20 03:52:01,621 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 390) no Hoare annotation was computed. [2020-07-20 03:52:01,621 INFO L268 CegarLoopResult]: For program point L184(lines 184 199) no Hoare annotation was computed. [2020-07-20 03:52:01,621 INFO L268 CegarLoopResult]: For program point L118(lines 118 129) no Hoare annotation was computed. [2020-07-20 03:52:01,622 INFO L268 CegarLoopResult]: For program point L366(lines 366 377) no Hoare annotation was computed. [2020-07-20 03:52:01,622 INFO L268 CegarLoopResult]: For program point L300(lines 300 315) no Hoare annotation was computed. [2020-07-20 03:52:01,622 INFO L268 CegarLoopResult]: For program point L234(lines 234 245) no Hoare annotation was computed. [2020-07-20 03:52:01,622 INFO L268 CegarLoopResult]: For program point L102(lines 102 113) no Hoare annotation was computed. [2020-07-20 03:52:01,622 INFO L268 CegarLoopResult]: For program point L350(lines 350 361) no Hoare annotation was computed. [2020-07-20 03:52:01,622 INFO L268 CegarLoopResult]: For program point L284(lines 284 299) no Hoare annotation was computed. [2020-07-20 03:52:01,622 INFO L268 CegarLoopResult]: For program point L218(lines 218 229) no Hoare annotation was computed. [2020-07-20 03:52:01,622 INFO L268 CegarLoopResult]: For program point L86(lines 86 88) no Hoare annotation was computed. [2020-07-20 03:52:01,622 INFO L268 CegarLoopResult]: For program point L334(lines 334 345) no Hoare annotation was computed. [2020-07-20 03:52:01,622 INFO L268 CegarLoopResult]: For program point L202(lines 202 213) no Hoare annotation was computed. [2020-07-20 03:52:01,622 INFO L268 CegarLoopResult]: For program point L70(lines 70 72) no Hoare annotation was computed. [2020-07-20 03:52:01,623 INFO L268 CegarLoopResult]: For program point L318(lines 318 329) no Hoare annotation was computed. [2020-07-20 03:52:01,623 INFO L268 CegarLoopResult]: For program point L186(lines 186 197) no Hoare annotation was computed. [2020-07-20 03:52:01,623 INFO L268 CegarLoopResult]: For program point L54(lines 54 56) no Hoare annotation was computed. [2020-07-20 03:52:01,623 INFO L268 CegarLoopResult]: For program point L302(lines 302 313) no Hoare annotation was computed. [2020-07-20 03:52:01,623 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 390) no Hoare annotation was computed. [2020-07-20 03:52:01,623 INFO L268 CegarLoopResult]: For program point L170(lines 170 172) no Hoare annotation was computed. [2020-07-20 03:52:01,623 INFO L268 CegarLoopResult]: For program point L286(lines 286 297) no Hoare annotation was computed. [2020-07-20 03:52:01,623 INFO L268 CegarLoopResult]: For program point L154(lines 154 156) no Hoare annotation was computed. [2020-07-20 03:52:01,624 INFO L264 CegarLoopResult]: At program point L22-2(lines 22 385) the Hoare annotation is: (or (and (= 0 main_~q~0) (<= main_~this_state~0 0)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2020-07-20 03:52:01,624 INFO L268 CegarLoopResult]: For program point L22-3(lines 22 385) no Hoare annotation was computed. [2020-07-20 03:52:01,624 INFO L268 CegarLoopResult]: For program point L270(lines 270 272) no Hoare annotation was computed. [2020-07-20 03:52:01,624 INFO L268 CegarLoopResult]: For program point L138(lines 138 140) no Hoare annotation was computed. [2020-07-20 03:52:01,624 INFO L268 CegarLoopResult]: For program point L254(lines 254 256) no Hoare annotation was computed. [2020-07-20 03:52:01,624 INFO L268 CegarLoopResult]: For program point L122(lines 122 124) no Hoare annotation was computed. [2020-07-20 03:52:01,624 INFO L268 CegarLoopResult]: For program point L370(lines 370 372) no Hoare annotation was computed. [2020-07-20 03:52:01,625 INFO L268 CegarLoopResult]: For program point L238(lines 238 240) no Hoare annotation was computed. [2020-07-20 03:52:01,625 INFO L268 CegarLoopResult]: For program point L106(lines 106 108) no Hoare annotation was computed. [2020-07-20 03:52:01,625 INFO L268 CegarLoopResult]: For program point L354(lines 354 356) no Hoare annotation was computed. [2020-07-20 03:52:01,625 INFO L268 CegarLoopResult]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-07-20 03:52:01,625 INFO L264 CegarLoopResult]: At program point L371(lines 13 390) the Hoare annotation is: false [2020-07-20 03:52:01,625 INFO L268 CegarLoopResult]: For program point L338(lines 338 340) no Hoare annotation was computed. [2020-07-20 03:52:01,625 INFO L268 CegarLoopResult]: For program point L206(lines 206 208) no Hoare annotation was computed. [2020-07-20 03:52:01,625 INFO L268 CegarLoopResult]: For program point L322(lines 322 324) no Hoare annotation was computed. [2020-07-20 03:52:01,625 INFO L268 CegarLoopResult]: For program point L190(lines 190 192) no Hoare annotation was computed. [2020-07-20 03:52:01,625 INFO L268 CegarLoopResult]: For program point L306(lines 306 308) no Hoare annotation was computed. [2020-07-20 03:52:01,626 INFO L268 CegarLoopResult]: For program point L290(lines 290 292) no Hoare annotation was computed. [2020-07-20 03:52:01,626 INFO L268 CegarLoopResult]: For program point L27(lines 27 46) no Hoare annotation was computed. [2020-07-20 03:52:01,626 INFO L268 CegarLoopResult]: For program point L28(lines 28 43) no Hoare annotation was computed. [2020-07-20 03:52:01,626 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 389) no Hoare annotation was computed. [2020-07-20 03:52:01,626 INFO L268 CegarLoopResult]: For program point L30(lines 30 41) no Hoare annotation was computed. [2020-07-20 03:52:01,626 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 390) the Hoare annotation is: true [2020-07-20 03:52:01,626 INFO L268 CegarLoopResult]: For program point L80(lines 80 95) no Hoare annotation was computed. [2020-07-20 03:52:01,627 INFO L268 CegarLoopResult]: For program point L47(lines 47 98) no Hoare annotation was computed. [2020-07-20 03:52:01,627 INFO L268 CegarLoopResult]: For program point L64(lines 64 79) no Hoare annotation was computed. [2020-07-20 03:52:01,627 INFO L268 CegarLoopResult]: For program point L48(lines 48 63) no Hoare annotation was computed. [2020-07-20 03:52:01,627 INFO L268 CegarLoopResult]: For program point L164(lines 164 179) no Hoare annotation was computed. [2020-07-20 03:52:01,627 INFO L268 CegarLoopResult]: For program point L148(lines 148 163) no Hoare annotation was computed. [2020-07-20 03:52:01,627 INFO L268 CegarLoopResult]: For program point L82(lines 82 93) no Hoare annotation was computed. [2020-07-20 03:52:01,627 INFO L268 CegarLoopResult]: For program point L264(lines 264 279) no Hoare annotation was computed. [2020-07-20 03:52:01,627 INFO L268 CegarLoopResult]: For program point L132(lines 132 147) no Hoare annotation was computed. [2020-07-20 03:52:01,628 INFO L268 CegarLoopResult]: For program point L99(lines 99 182) no Hoare annotation was computed. [2020-07-20 03:52:01,628 INFO L268 CegarLoopResult]: For program point L66(lines 66 77) no Hoare annotation was computed. [2020-07-20 03:52:01,628 INFO L268 CegarLoopResult]: For program point L248(lines 248 263) no Hoare annotation was computed. [2020-07-20 03:52:01,628 INFO L268 CegarLoopResult]: For program point L116(lines 116 131) no Hoare annotation was computed. [2020-07-20 03:52:01,628 INFO L268 CegarLoopResult]: For program point L50(lines 50 61) no Hoare annotation was computed. [2020-07-20 03:52:01,628 INFO L268 CegarLoopResult]: For program point L364(lines 364 379) no Hoare annotation was computed. [2020-07-20 03:52:01,628 INFO L268 CegarLoopResult]: For program point L232(lines 232 247) no Hoare annotation was computed. [2020-07-20 03:52:01,628 INFO L268 CegarLoopResult]: For program point L166(lines 166 177) no Hoare annotation was computed. [2020-07-20 03:52:01,629 INFO L268 CegarLoopResult]: For program point L100(lines 100 115) no Hoare annotation was computed. [2020-07-20 03:52:01,629 INFO L268 CegarLoopResult]: For program point L34(lines 34 36) no Hoare annotation was computed. [2020-07-20 03:52:01,629 INFO L264 CegarLoopResult]: At program point L381(lines 22 385) the Hoare annotation is: (let ((.cse0 (<= main_~this_state~0 0))) (or (and (= 0 main_~q~0) .cse0) (and (= 3 main_~q~0) (= 2 main_~this_state~0)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) (and .cse0 (= 2 main_~q~0)))) [2020-07-20 03:52:01,629 INFO L268 CegarLoopResult]: For program point L348(lines 348 363) no Hoare annotation was computed. [2020-07-20 03:52:01,629 INFO L268 CegarLoopResult]: For program point L216(lines 216 231) no Hoare annotation was computed. [2020-07-20 03:52:01,629 INFO L268 CegarLoopResult]: For program point L183(lines 183 282) no Hoare annotation was computed. [2020-07-20 03:52:01,629 INFO L268 CegarLoopResult]: For program point L150(lines 150 161) no Hoare annotation was computed. [2020-07-20 03:52:01,629 INFO L268 CegarLoopResult]: For program point L332(lines 332 347) no Hoare annotation was computed. [2020-07-20 03:52:01,630 INFO L268 CegarLoopResult]: For program point L266(lines 266 277) no Hoare annotation was computed. [2020-07-20 03:52:01,630 INFO L268 CegarLoopResult]: For program point L200(lines 200 215) no Hoare annotation was computed. [2020-07-20 03:52:01,630 INFO L268 CegarLoopResult]: For program point L134(lines 134 145) no Hoare annotation was computed. [2020-07-20 03:52:01,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 03:52:01 BoogieIcfgContainer [2020-07-20 03:52:01,646 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 03:52:01,649 INFO L168 Benchmark]: Toolchain (without parser) took 4886.49 ms. Allocated memory was 136.8 MB in the beginning and 250.1 MB in the end (delta: 113.2 MB). Free memory was 100.7 MB in the beginning and 187.6 MB in the end (delta: -87.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-07-20 03:52:01,650 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 03:52:01,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.87 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 100.2 MB in the beginning and 179.4 MB in the end (delta: -79.1 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-07-20 03:52:01,652 INFO L168 Benchmark]: Boogie Preprocessor took 50.50 ms. Allocated memory is still 200.8 MB. Free memory was 179.4 MB in the beginning and 177.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-07-20 03:52:01,652 INFO L168 Benchmark]: RCFGBuilder took 605.22 ms. Allocated memory is still 200.8 MB. Free memory was 176.6 MB in the beginning and 149.0 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2020-07-20 03:52:01,653 INFO L168 Benchmark]: TraceAbstraction took 3725.95 ms. Allocated memory was 200.8 MB in the beginning and 250.1 MB in the end (delta: 49.3 MB). Free memory was 148.4 MB in the beginning and 187.6 MB in the end (delta: -39.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-20 03:52:01,657 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 492.87 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 100.2 MB in the beginning and 179.4 MB in the end (delta: -79.1 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.50 ms. Allocated memory is still 200.8 MB. Free memory was 179.4 MB in the beginning and 177.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 605.22 ms. Allocated memory is still 200.8 MB. Free memory was 176.6 MB in the beginning and 149.0 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3725.95 ms. Allocated memory was 200.8 MB in the beginning and 250.1 MB in the end (delta: 49.3 MB). Free memory was 148.4 MB in the beginning and 187.6 MB in the end (delta: -39.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 389]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((0 == q && this_state <= 0) || (3 == q && 2 == this_state)) || (4 <= q && 3 == this_state)) || (this_state <= 0 && 2 == q) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (0 == q && this_state <= 0) || (4 <= q && 3 == this_state) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 83 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1008 SDtfs, 1441 SDslu, 73 SDs, 0 SdLazy, 634 SolverSat, 96 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred 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: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 28 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 13 NumberOfFragments, 67 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 153 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 277 NumberOfCodeBlocks, 277 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 15354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 55/55 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...