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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:44:43,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:44:43,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:44:43,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:44:43,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:44:43,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:44:43,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:44:43,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:44:43,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:44:43,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:44:43,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:44:43,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:44:43,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:44:43,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:44:43,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:44:43,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:44:43,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:44:43,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:44:43,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:44:43,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:44:43,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:44:43,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:44:43,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:44:43,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:44:43,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:44:43,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:44:43,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:44:43,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:44:43,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:44:43,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:44:43,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:44:43,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:44:43,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:44:43,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:44:43,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:44:43,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:44:43,258 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 [2019-10-14 23:44:43,291 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:44:43,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:44:43,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:44:43,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:44:43,296 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:44:43,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:44:43,296 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:44:43,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:44:43,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:44:43,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:44:43,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:44:43,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:44:43,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:44:43,300 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:44:43,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:44:43,300 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:44:43,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:44:43,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:44:43,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:44:43,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:44:43,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:44:43,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:44:43,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:44:43,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:44:43,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:44:43,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:44:43,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:44:43,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:44:43,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:44:43,590 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:44:43,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:44:43,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:44:43,618 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:44:43,619 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:44:43,619 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2019-10-14 23:44:43,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba356986/b3ee05fa76a047feb1da580b82a69522/FLAGa57eb227e [2019-10-14 23:44:44,465 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:44:44,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2019-10-14 23:44:44,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba356986/b3ee05fa76a047feb1da580b82a69522/FLAGa57eb227e [2019-10-14 23:44:44,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba356986/b3ee05fa76a047feb1da580b82a69522 [2019-10-14 23:44:44,552 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:44:44,556 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:44:44,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:44:44,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:44:44,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:44:44,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:44" (1/1) ... [2019-10-14 23:44:44,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b1071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44, skipping insertion in model container [2019-10-14 23:44:44,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:44" (1/1) ... [2019-10-14 23:44:44,578 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:44:44,761 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:44:45,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:44:45,957 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:44:46,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:44:46,345 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:44:46,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:46 WrapperNode [2019-10-14 23:44:46,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:44:46,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:44:46,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:44:46,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:44:46,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:46" (1/1) ... [2019-10-14 23:44:46,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:46" (1/1) ... [2019-10-14 23:44:46,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:46" (1/1) ... [2019-10-14 23:44:46,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:46" (1/1) ... [2019-10-14 23:44:46,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:46" (1/1) ... [2019-10-14 23:44:46,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:46" (1/1) ... [2019-10-14 23:44:46,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:46" (1/1) ... [2019-10-14 23:44:46,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:44:46,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:44:46,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:44:46,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:44:46,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:46" (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 [2019-10-14 23:44:46,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:44:46,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:44:46,665 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:44:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:44:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-14 23:44:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-14 23:44:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-14 23:44:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-14 23:44:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:44:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-14 23:44:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-10-14 23:44:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-10-14 23:44:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-10-14 23:44:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-10-14 23:44:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-14 23:44:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-14 23:44:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:44:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:44:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:44:50,178 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:44:50,179 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 23:44:50,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:50 BoogieIcfgContainer [2019-10-14 23:44:50,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:44:50,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:44:50,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:44:50,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:44:50,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:44:44" (1/3) ... [2019-10-14 23:44:50,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c7754a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:50, skipping insertion in model container [2019-10-14 23:44:50,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:46" (2/3) ... [2019-10-14 23:44:50,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c7754a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:50, skipping insertion in model container [2019-10-14 23:44:50,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:50" (3/3) ... [2019-10-14 23:44:50,198 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2019-10-14 23:44:50,209 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:44:50,221 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-10-14 23:44:50,233 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-10-14 23:44:50,268 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:44:50,268 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:44:50,268 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:44:50,269 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:44:50,269 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:44:50,269 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:44:50,269 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:44:50,269 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:44:50,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states. [2019-10-14 23:44:50,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-14 23:44:50,331 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:44:50,333 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:44:50,335 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:44:50,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:44:50,342 INFO L82 PathProgramCache]: Analyzing trace with hash -261683, now seen corresponding path program 1 times [2019-10-14 23:44:50,351 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:44:50,351 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034008599] [2019-10-14 23:44:50,352 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:44:50,352 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:44:50,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:44:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:44:51,677 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2019-10-14 23:44:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:44:51,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:44:51,816 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034008599] [2019-10-14 23:44:51,817 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:44:51,817 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:44:51,818 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120921846] [2019-10-14 23:44:51,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:44:51,826 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:44:51,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:44:51,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:44:51,844 INFO L87 Difference]: Start difference. First operand 1259 states. Second operand 6 states. [2019-10-14 23:44:52,533 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-14 23:45:01,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:01,162 INFO L93 Difference]: Finished difference Result 2475 states and 4331 transitions. [2019-10-14 23:45:01,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:45:01,164 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2019-10-14 23:45:01,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:01,192 INFO L225 Difference]: With dead ends: 2475 [2019-10-14 23:45:01,192 INFO L226 Difference]: Without dead ends: 1554 [2019-10-14 23:45:01,203 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:45:01,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2019-10-14 23:45:01,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1548. [2019-10-14 23:45:01,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1548 states. [2019-10-14 23:45:01,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2090 transitions. [2019-10-14 23:45:01,419 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2090 transitions. Word has length 55 [2019-10-14 23:45:01,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:01,420 INFO L462 AbstractCegarLoop]: Abstraction has 1548 states and 2090 transitions. [2019-10-14 23:45:01,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:45:01,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2090 transitions. [2019-10-14 23:45:01,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-14 23:45:01,425 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:01,425 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:45:01,425 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:01,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:01,426 INFO L82 PathProgramCache]: Analyzing trace with hash -19234945, now seen corresponding path program 1 times [2019-10-14 23:45:01,426 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:01,426 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070830678] [2019-10-14 23:45:01,427 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:01,427 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:01,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:02,201 WARN L191 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2019-10-14 23:45:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:02,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:02,241 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070830678] [2019-10-14 23:45:02,241 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:02,241 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:45:02,241 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977861584] [2019-10-14 23:45:02,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:45:02,243 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:02,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:45:02,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:45:02,244 INFO L87 Difference]: Start difference. First operand 1548 states and 2090 transitions. Second operand 7 states. [2019-10-14 23:45:02,837 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-14 23:45:08,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:08,875 INFO L93 Difference]: Finished difference Result 3384 states and 4662 transitions. [2019-10-14 23:45:08,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:45:08,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-14 23:45:08,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:08,888 INFO L225 Difference]: With dead ends: 3384 [2019-10-14 23:45:08,888 INFO L226 Difference]: Without dead ends: 2296 [2019-10-14 23:45:08,892 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:45:08,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2019-10-14 23:45:08,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 2280. [2019-10-14 23:45:08,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2280 states. [2019-10-14 23:45:08,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2280 states to 2280 states and 3126 transitions. [2019-10-14 23:45:08,984 INFO L78 Accepts]: Start accepts. Automaton has 2280 states and 3126 transitions. Word has length 56 [2019-10-14 23:45:08,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:08,985 INFO L462 AbstractCegarLoop]: Abstraction has 2280 states and 3126 transitions. [2019-10-14 23:45:08,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:45:08,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2280 states and 3126 transitions. [2019-10-14 23:45:08,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-14 23:45:08,989 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:08,989 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:45:08,990 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:08,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:08,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1128300978, now seen corresponding path program 1 times [2019-10-14 23:45:08,990 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:08,991 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030675849] [2019-10-14 23:45:08,991 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:08,991 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:08,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:09,725 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2019-10-14 23:45:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:09,764 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030675849] [2019-10-14 23:45:09,764 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:09,764 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:45:09,764 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592077657] [2019-10-14 23:45:09,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:45:09,765 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:09,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:45:09,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:45:09,766 INFO L87 Difference]: Start difference. First operand 2280 states and 3126 transitions. Second operand 7 states. [2019-10-14 23:45:10,353 WARN L191 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-14 23:45:15,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:15,682 INFO L93 Difference]: Finished difference Result 5893 states and 8147 transitions. [2019-10-14 23:45:15,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:45:15,683 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-14 23:45:15,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:15,704 INFO L225 Difference]: With dead ends: 5893 [2019-10-14 23:45:15,704 INFO L226 Difference]: Without dead ends: 4335 [2019-10-14 23:45:15,708 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:45:15,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4335 states. [2019-10-14 23:45:15,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4335 to 4315. [2019-10-14 23:45:15,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4315 states. [2019-10-14 23:45:15,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4315 states to 4315 states and 5971 transitions. [2019-10-14 23:45:15,882 INFO L78 Accepts]: Start accepts. Automaton has 4315 states and 5971 transitions. Word has length 56 [2019-10-14 23:45:15,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:15,884 INFO L462 AbstractCegarLoop]: Abstraction has 4315 states and 5971 transitions. [2019-10-14 23:45:15,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:45:15,885 INFO L276 IsEmpty]: Start isEmpty. Operand 4315 states and 5971 transitions. [2019-10-14 23:45:15,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-14 23:45:15,892 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:15,892 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:45:15,892 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:15,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:15,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1514896090, now seen corresponding path program 1 times [2019-10-14 23:45:15,893 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:15,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995614415] [2019-10-14 23:45:15,893 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:15,894 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:15,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:16,745 WARN L191 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2019-10-14 23:45:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:16,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:16,786 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995614415] [2019-10-14 23:45:16,787 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:16,787 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:45:16,787 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84105031] [2019-10-14 23:45:16,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:45:16,788 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:16,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:45:16,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:45:16,789 INFO L87 Difference]: Start difference. First operand 4315 states and 5971 transitions. Second operand 10 states. [2019-10-14 23:45:17,440 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 323