/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:38:33,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:38:33,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:38:33,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:38:33,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:38:33,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:38:33,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:38:33,472 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 [2020-10-23 18:38:33,529 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:38:33,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:38:33,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:38:33,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:38:33,534 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:38:33,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:38:33,535 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:38:33,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:38:33,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:38:33,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:38:33,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:38:33,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:38:33,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:38:33,537 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:38:33,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:38:33,538 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:38:33,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:38:33,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:38:33,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:38:33,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:38:33,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:38:33,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:38:33,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:38:33,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:38:33,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:38:33,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:38:33,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:38:33,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:38:33,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:38:33,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:38:33,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:38:34,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:38:34,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:38:34,033 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:38:34,034 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:38:34,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-10-23 18:38:34,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/886042a0d/1edc99cd62e04f519208fb00e1bd9609/FLAG697f11472 [2020-10-23 18:38:34,931 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:38:34,931 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-10-23 18:38:34,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/886042a0d/1edc99cd62e04f519208fb00e1bd9609/FLAG697f11472 [2020-10-23 18:38:35,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/886042a0d/1edc99cd62e04f519208fb00e1bd9609 [2020-10-23 18:38:35,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:38:35,157 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:38:35,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:38:35,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:38:35,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:38:35,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:38:35" (1/1) ... [2020-10-23 18:38:35,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb1fdfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:35, skipping insertion in model container [2020-10-23 18:38:35,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:38:35" (1/1) ... [2020-10-23 18:38:35,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:38:35,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:38:35,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:38:35,791 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:38:35,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:38:35,985 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:38:35,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:35 WrapperNode [2020-10-23 18:38:35,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:38:35,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:38:35,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:38:35,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:38:36,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:35" (1/1) ... [2020-10-23 18:38:36,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:35" (1/1) ... [2020-10-23 18:38:36,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:35" (1/1) ... [2020-10-23 18:38:36,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:35" (1/1) ... [2020-10-23 18:38:36,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:35" (1/1) ... [2020-10-23 18:38:36,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:35" (1/1) ... [2020-10-23 18:38:36,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:35" (1/1) ... [2020-10-23 18:38:36,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:38:36,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:38:36,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:38:36,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:38:36,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:35" (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 [2020-10-23 18:38:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:38:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:38:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:38:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:38:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:38:36,247 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:38:36,247 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:38:36,247 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:38:36,247 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:38:36,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:38:36,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:38:36,249 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:38:36,249 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:38:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:38:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:38:36,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:38:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:38:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:38:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:38:38,266 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:38:38,266 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:38:38,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:38:38 BoogieIcfgContainer [2020-10-23 18:38:38,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:38:38,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:38:38,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:38:38,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:38:38,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:38:35" (1/3) ... [2020-10-23 18:38:38,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35eaf349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:38:38, skipping insertion in model container [2020-10-23 18:38:38,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:35" (2/3) ... [2020-10-23 18:38:38,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35eaf349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:38:38, skipping insertion in model container [2020-10-23 18:38:38,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:38:38" (3/3) ... [2020-10-23 18:38:38,278 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2020-10-23 18:38:38,291 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:38:38,297 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:38:38,317 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:38:38,346 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:38:38,347 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:38:38,347 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:38:38,347 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:38:38,347 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:38:38,347 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:38:38,348 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:38:38,348 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:38:38,373 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-23 18:38:38,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-23 18:38:38,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:38:38,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:38:38,383 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:38:38,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:38:38,390 INFO L82 PathProgramCache]: Analyzing trace with hash -553016610, now seen corresponding path program 1 times [2020-10-23 18:38:38,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:38:38,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462128310] [2020-10-23 18:38:38,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:38:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:38,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:38:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:38,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:38:38,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462128310] [2020-10-23 18:38:38,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:38:38,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:38:38,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125493967] [2020-10-23 18:38:38,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:38:38,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:38:38,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:38:38,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:38:38,914 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 5 states. [2020-10-23 18:38:42,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:38:42,719 INFO L93 Difference]: Finished difference Result 891 states and 1618 transitions. [2020-10-23 18:38:42,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:38:42,721 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-10-23 18:38:42,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:38:42,745 INFO L225 Difference]: With dead ends: 891 [2020-10-23 18:38:42,745 INFO L226 Difference]: Without dead ends: 565 [2020-10-23 18:38:42,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:38:42,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-23 18:38:42,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 561. [2020-10-23 18:38:42,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-10-23 18:38:42,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 868 transitions. [2020-10-23 18:38:42,872 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 868 transitions. Word has length 57 [2020-10-23 18:38:42,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:38:42,873 INFO L481 AbstractCegarLoop]: Abstraction has 561 states and 868 transitions. [2020-10-23 18:38:42,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:38:42,874 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 868 transitions. [2020-10-23 18:38:42,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-23 18:38:42,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:38:42,884 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:38:42,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:38:42,885 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:38:42,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:38:42,886 INFO L82 PathProgramCache]: Analyzing trace with hash 309828045, now seen corresponding path program 1 times [2020-10-23 18:38:42,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:38:42,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483352584] [2020-10-23 18:38:42,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:38:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:43,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:38:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:43,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:38:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:43,277 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:38:43,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483352584] [2020-10-23 18:38:43,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084441597] [2020-10-23 18:38:43,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:43,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-23 18:38:43,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:38:43,633 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-23 18:38:43,633 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:38:43,635 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:38:43,766 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:38:43,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:38:43,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2020-10-23 18:38:43,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80442904] [2020-10-23 18:38:43,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:38:43,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:38:43,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:38:43,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:38:43,771 INFO L87 Difference]: Start difference. First operand 561 states and 868 transitions. Second operand 5 states. [2020-10-23 18:38:45,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:38:45,817 INFO L93 Difference]: Finished difference Result 1686 states and 2644 transitions. [2020-10-23 18:38:45,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:38:45,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-10-23 18:38:45,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:38:45,833 INFO L225 Difference]: With dead ends: 1686 [2020-10-23 18:38:45,833 INFO L226 Difference]: Without dead ends: 1131 [2020-10-23 18:38:45,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:38:45,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2020-10-23 18:38:45,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 935. [2020-10-23 18:38:45,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 935 states. [2020-10-23 18:38:45,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1295 transitions. [2020-10-23 18:38:45,943 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1295 transitions. Word has length 140 [2020-10-23 18:38:45,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:38:45,943 INFO L481 AbstractCegarLoop]: Abstraction has 935 states and 1295 transitions. [2020-10-23 18:38:45,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:38:45,944 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1295 transitions. [2020-10-23 18:38:45,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-23 18:38:45,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:38:45,962 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-23 18:38:46,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-23 18:38:46,165 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:38:46,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:38:46,166 INFO L82 PathProgramCache]: Analyzing trace with hash 394469556, now seen corresponding path program 1 times [2020-10-23 18:38:46,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:38:46,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201223162] [2020-10-23 18:38:46,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:38:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:46,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:38:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:46,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:38:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:46,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-23 18:38:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:46,565 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 98 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:38:46,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201223162] [2020-10-23 18:38:46,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69346036] [2020-10-23 18:38:46,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:46,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-23 18:38:46,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:38:46,842 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-23 18:38:46,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:38:46,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-10-23 18:38:46,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168816885] [2020-10-23 18:38:46,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:38:46,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:38:46,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:38:46,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:38:46,850 INFO L87 Difference]: Start difference. First operand 935 states and 1295 transitions. Second operand 5 states. [2020-10-23 18:38:48,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:38:48,598 INFO L93 Difference]: Finished difference Result 2270 states and 3400 transitions. [2020-10-23 18:38:48,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:38:48,599 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2020-10-23 18:38:48,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:38:48,613 INFO L225 Difference]: With dead ends: 2270 [2020-10-23 18:38:48,614 INFO L226 Difference]: Without dead ends: 1523 [2020-10-23 18:38:48,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:38:48,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2020-10-23 18:38:48,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1497. [2020-10-23 18:38:48,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2020-10-23 18:38:48,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2042 transitions. [2020-10-23 18:38:48,704 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2042 transitions. Word has length 210 [2020-10-23 18:38:48,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:38:48,708 INFO L481 AbstractCegarLoop]: Abstraction has 1497 states and 2042 transitions. [2020-10-23 18:38:48,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:38:48,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2042 transitions. [2020-10-23 18:38:48,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-23 18:38:48,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:38:48,715 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:38:48,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:48,929 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:38:48,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:38:48,930 INFO L82 PathProgramCache]: Analyzing trace with hash 250746328, now seen corresponding path program 1 times [2020-10-23 18:38:48,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:38:48,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121858065] [2020-10-23 18:38:48,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:38:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:49,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:38:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:49,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:38:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:49,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 18:38:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:49,768 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 128 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:38:49,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121858065] [2020-10-23 18:38:49,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976524558] [2020-10-23 18:38:49,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:49,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-23 18:38:49,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:38:50,137 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-10-23 18:38:50,137 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:38:50,145 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:38:50,150 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:38:50,423 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:38:50,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:38:50,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2020-10-23 18:38:50,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731971519] [2020-10-23 18:38:50,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 18:38:50,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:38:50,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 18:38:50,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:38:50,426 INFO L87 Difference]: Start difference. First operand 1497 states and 2042 transitions. Second operand 15 states. [2020-10-23 18:38:50,645 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-10-23 18:38:51,008 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-10-23 18:38:51,613 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-23 18:38:52,884 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2020-10-23 18:38:53,929 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2020-10-23 18:38:55,471 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2020-10-23 18:38:57,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:38:57,392 INFO L93 Difference]: Finished difference Result 3500 states and 4862 transitions. [2020-10-23 18:38:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-23 18:38:57,393 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 224 [2020-10-23 18:38:57,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:38:57,408 INFO L225 Difference]: With dead ends: 3500 [2020-10-23 18:38:57,408 INFO L226 Difference]: Without dead ends: 2144 [2020-10-23 18:38:57,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=318, Invalid=1164, Unknown=0, NotChecked=0, Total=1482 [2020-10-23 18:38:57,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2020-10-23 18:38:57,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 2059. [2020-10-23 18:38:57,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2059 states. [2020-10-23 18:38:57,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 2462 transitions. [2020-10-23 18:38:57,518 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 2462 transitions. Word has length 224 [2020-10-23 18:38:57,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:38:57,521 INFO L481 AbstractCegarLoop]: Abstraction has 2059 states and 2462 transitions. [2020-10-23 18:38:57,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 18:38:57,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 2462 transitions. [2020-10-23 18:38:57,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-10-23 18:38:57,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:38:57,531 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:38:57,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:57,744 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:38:57,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:38:57,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1701459667, now seen corresponding path program 1 times [2020-10-23 18:38:57,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:38:57,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489344121] [2020-10-23 18:38:57,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:38:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:57,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:38:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:57,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:38:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:58,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:38:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:58,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:38:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:58,669 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 245 proven. 94 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-23 18:38:58,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489344121] [2020-10-23 18:38:58,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648381904] [2020-10-23 18:38:58,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:58,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-23 18:38:58,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:38:59,029 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-10-23 18:38:59,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:38:59,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2020-10-23 18:38:59,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179658188] [2020-10-23 18:38:59,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 18:38:59,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:38:59,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 18:38:59,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:38:59,033 INFO L87 Difference]: Start difference. First operand 2059 states and 2462 transitions. Second operand 13 states. [2020-10-23 18:39:00,983 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-10-23 18:39:01,430 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-10-23 18:39:02,730 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-23 18:39:04,275 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-10-23 18:39:05,255 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-10-23 18:39:06,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:06,992 INFO L93 Difference]: Finished difference Result 5254 states and 6452 transitions. [2020-10-23 18:39:06,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-23 18:39:06,993 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 359 [2020-10-23 18:39:06,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:07,013 INFO L225 Difference]: With dead ends: 5254 [2020-10-23 18:39:07,013 INFO L226 Difference]: Without dead ends: 3383 [2020-10-23 18:39:07,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=483, Invalid=1773, Unknown=0, NotChecked=0, Total=2256 [2020-10-23 18:39:07,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2020-10-23 18:39:07,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 2997. [2020-10-23 18:39:07,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2997 states. [2020-10-23 18:39:07,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2997 states to 2997 states and 3584 transitions. [2020-10-23 18:39:07,145 INFO L78 Accepts]: Start accepts. Automaton has 2997 states and 3584 transitions. Word has length 359 [2020-10-23 18:39:07,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:07,147 INFO L481 AbstractCegarLoop]: Abstraction has 2997 states and 3584 transitions. [2020-10-23 18:39:07,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 18:39:07,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2997 states and 3584 transitions. [2020-10-23 18:39:07,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2020-10-23 18:39:07,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:39:07,155 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:39:07,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:07,372 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:39:07,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:39:07,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1910552033, now seen corresponding path program 1 times [2020-10-23 18:39:07,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:39:07,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462215337] [2020-10-23 18:39:07,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:39:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:07,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:39:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:07,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:39:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:07,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:39:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:07,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:39:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:07,946 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 135 proven. 12 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-23 18:39:07,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462215337] [2020-10-23 18:39:07,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552263822] [2020-10-23 18:39:07,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:08,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:39:08,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:39:08,318 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-10-23 18:39:08,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:39:08,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-10-23 18:39:08,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557483044] [2020-10-23 18:39:08,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:39:08,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:39:08,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:39:08,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:39:08,322 INFO L87 Difference]: Start difference. First operand 2997 states and 3584 transitions. Second operand 3 states. [2020-10-23 18:39:09,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:09,401 INFO L93 Difference]: Finished difference Result 6544 states and 7979 transitions. [2020-10-23 18:39:09,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:39:09,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 386 [2020-10-23 18:39:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:09,430 INFO L225 Difference]: With dead ends: 6544 [2020-10-23 18:39:09,430 INFO L226 Difference]: Without dead ends: 3735 [2020-10-23 18:39:09,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:39:09,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2020-10-23 18:39:09,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3553. [2020-10-23 18:39:09,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3553 states. [2020-10-23 18:39:09,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 4261 transitions. [2020-10-23 18:39:09,568 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 4261 transitions. Word has length 386 [2020-10-23 18:39:09,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:09,569 INFO L481 AbstractCegarLoop]: Abstraction has 3553 states and 4261 transitions. [2020-10-23 18:39:09,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:39:09,573 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 4261 transitions. [2020-10-23 18:39:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2020-10-23 18:39:09,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:39:09,584 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:39:09,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-23 18:39:09,799 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:39:09,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:39:09,800 INFO L82 PathProgramCache]: Analyzing trace with hash -210681655, now seen corresponding path program 1 times [2020-10-23 18:39:09,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:39:09,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399122696] [2020-10-23 18:39:09,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:39:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:10,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:39:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:10,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:39:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:10,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:39:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:10,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:39:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:10,457 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 135 proven. 12 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-23 18:39:10,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399122696] [2020-10-23 18:39:10,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326801585] [2020-10-23 18:39:10,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:10,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:39:10,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:39:10,907 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-10-23 18:39:10,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:39:10,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-10-23 18:39:10,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479674986] [2020-10-23 18:39:10,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:39:10,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:39:10,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:39:10,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:39:10,911 INFO L87 Difference]: Start difference. First operand 3553 states and 4261 transitions. Second operand 3 states. [2020-10-23 18:39:11,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:11,916 INFO L93 Difference]: Finished difference Result 4648 states and 5510 transitions. [2020-10-23 18:39:11,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:39:11,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 438 [2020-10-23 18:39:11,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:11,942 INFO L225 Difference]: With dead ends: 4648 [2020-10-23 18:39:11,942 INFO L226 Difference]: Without dead ends: 4645 [2020-10-23 18:39:11,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:39:11,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4645 states. [2020-10-23 18:39:12,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4645 to 3367. [2020-10-23 18:39:12,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3367 states. [2020-10-23 18:39:12,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 3953 transitions. [2020-10-23 18:39:12,063 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 3953 transitions. Word has length 438 [2020-10-23 18:39:12,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:12,065 INFO L481 AbstractCegarLoop]: Abstraction has 3367 states and 3953 transitions. [2020-10-23 18:39:12,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:39:12,065 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 3953 transitions. [2020-10-23 18:39:12,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2020-10-23 18:39:12,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:39:12,076 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:39:12,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:12,290 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:39:12,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:39:12,291 INFO L82 PathProgramCache]: Analyzing trace with hash 865518558, now seen corresponding path program 1 times [2020-10-23 18:39:12,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:39:12,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101837167] [2020-10-23 18:39:12,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:39:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:12,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:39:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:12,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:39:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:12,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:39:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:12,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:39:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:12,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-23 18:39:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:13,072 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 442 proven. 6 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2020-10-23 18:39:13,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101837167] [2020-10-23 18:39:13,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91484834] [2020-10-23 18:39:13,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:13,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-23 18:39:13,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:39:13,370 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-10-23 18:39:13,370 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:39:13,372 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:39:13,373 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:39:13,781 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 449 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-23 18:39:13,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:39:13,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2020-10-23 18:39:13,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809289125] [2020-10-23 18:39:13,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:39:13,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:39:13,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:39:13,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:39:13,784 INFO L87 Difference]: Start difference. First operand 3367 states and 3953 transitions. Second operand 11 states. [2020-10-23 18:39:14,245 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2020-10-23 18:39:15,690 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2020-10-23 18:39:17,392 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2020-10-23 18:39:17,839 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2020-10-23 18:39:18,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:18,852 INFO L93 Difference]: Finished difference Result 6476 states and 7647 transitions. [2020-10-23 18:39:18,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-23 18:39:18,853 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 443 [2020-10-23 18:39:18,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:18,870 INFO L225 Difference]: With dead ends: 6476 [2020-10-23 18:39:18,871 INFO L226 Difference]: Without dead ends: 3260 [2020-10-23 18:39:18,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 466 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2020-10-23 18:39:18,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3260 states. [2020-10-23 18:39:18,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3260 to 3189. [2020-10-23 18:39:18,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3189 states. [2020-10-23 18:39:18,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3189 states to 3189 states and 3561 transitions. [2020-10-23 18:39:18,974 INFO L78 Accepts]: Start accepts. Automaton has 3189 states and 3561 transitions. Word has length 443 [2020-10-23 18:39:18,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:18,975 INFO L481 AbstractCegarLoop]: Abstraction has 3189 states and 3561 transitions. [2020-10-23 18:39:18,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:39:18,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3189 states and 3561 transitions. [2020-10-23 18:39:18,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2020-10-23 18:39:18,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:39:18,993 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:39:19,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:19,207 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:39:19,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:39:19,209 INFO L82 PathProgramCache]: Analyzing trace with hash -995999541, now seen corresponding path program 1 times [2020-10-23 18:39:19,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:39:19,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98649387] [2020-10-23 18:39:19,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:39:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:19,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:39:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:19,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:39:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:19,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:39:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:19,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:39:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:19,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-23 18:39:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:19,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2020-10-23 18:39:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:20,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 564 proven. 8 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2020-10-23 18:39:20,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98649387] [2020-10-23 18:39:20,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305626686] [2020-10-23 18:39:20,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:20,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-23 18:39:20,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:39:21,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 740 proven. 2 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2020-10-23 18:39:21,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:39:21,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2020-10-23 18:39:21,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285857277] [2020-10-23 18:39:21,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 18:39:21,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:39:21,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 18:39:21,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:39:21,174 INFO L87 Difference]: Start difference. First operand 3189 states and 3561 transitions. Second operand 14 states. [2020-10-23 18:39:21,652 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2020-10-23 18:39:21,893 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-23 18:39:22,217 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-23 18:39:22,458 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2020-10-23 18:39:22,879 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2020-10-23 18:39:24,251 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2020-10-23 18:39:25,161 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-10-23 18:39:25,728 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-10-23 18:39:26,029 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-10-23 18:39:26,465 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-10-23 18:39:27,338 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-23 18:39:27,601 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 73 [2020-10-23 18:39:28,339 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2020-10-23 18:39:28,564 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-23 18:39:28,869 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-23 18:39:29,115 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2020-10-23 18:39:29,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:29,738 INFO L93 Difference]: Finished difference Result 7080 states and 8001 transitions. [2020-10-23 18:39:29,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-23 18:39:29,739 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 549 [2020-10-23 18:39:29,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:29,759 INFO L225 Difference]: With dead ends: 7080 [2020-10-23 18:39:29,759 INFO L226 Difference]: Without dead ends: 4021 [2020-10-23 18:39:29,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 579 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=386, Invalid=1420, Unknown=0, NotChecked=0, Total=1806 [2020-10-23 18:39:29,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2020-10-23 18:39:29,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 3557. [2020-10-23 18:39:29,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3557 states. [2020-10-23 18:39:29,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3557 states to 3557 states and 3912 transitions. [2020-10-23 18:39:29,868 INFO L78 Accepts]: Start accepts. Automaton has 3557 states and 3912 transitions. Word has length 549 [2020-10-23 18:39:29,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:29,869 INFO L481 AbstractCegarLoop]: Abstraction has 3557 states and 3912 transitions. [2020-10-23 18:39:29,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 18:39:29,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3557 states and 3912 transitions. [2020-10-23 18:39:29,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2020-10-23 18:39:29,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:39:29,879 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:39:30,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-10-23 18:39:30,095 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:39:30,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:39:30,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1164276599, now seen corresponding path program 1 times [2020-10-23 18:39:30,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:39:30,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090619554] [2020-10-23 18:39:30,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:39:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:30,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:39:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:30,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:39:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:30,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:39:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:30,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:39:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:30,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-23 18:39:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:30,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-23 18:39:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:30,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 594 proven. 82 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2020-10-23 18:39:30,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090619554] [2020-10-23 18:39:30,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274855318] [2020-10-23 18:39:30,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:31,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:39:31,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:39:31,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 867 proven. 2 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2020-10-23 18:39:31,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:39:31,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2020-10-23 18:39:31,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512382454] [2020-10-23 18:39:31,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:39:31,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:39:31,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:39:31,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:39:31,529 INFO L87 Difference]: Start difference. First operand 3557 states and 3912 transitions. Second operand 8 states. [2020-10-23 18:39:33,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:33,839 INFO L93 Difference]: Finished difference Result 8032 states and 8947 transitions. [2020-10-23 18:39:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 18:39:33,845 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 655 [2020-10-23 18:39:33,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:33,876 INFO L225 Difference]: With dead ends: 8032 [2020-10-23 18:39:33,876 INFO L226 Difference]: Without dead ends: 4847 [2020-10-23 18:39:33,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 671 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:39:33,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2020-10-23 18:39:34,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4663. [2020-10-23 18:39:34,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4663 states. [2020-10-23 18:39:34,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4663 states to 4663 states and 5126 transitions. [2020-10-23 18:39:34,030 INFO L78 Accepts]: Start accepts. Automaton has 4663 states and 5126 transitions. Word has length 655 [2020-10-23 18:39:34,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:34,031 INFO L481 AbstractCegarLoop]: Abstraction has 4663 states and 5126 transitions. [2020-10-23 18:39:34,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:39:34,031 INFO L276 IsEmpty]: Start isEmpty. Operand 4663 states and 5126 transitions. [2020-10-23 18:39:34,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2020-10-23 18:39:34,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:39:34,045 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:39:34,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:34,259 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:39:34,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:39:34,260 INFO L82 PathProgramCache]: Analyzing trace with hash 560392182, now seen corresponding path program 1 times [2020-10-23 18:39:34,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:39:34,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289560621] [2020-10-23 18:39:34,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:39:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:34,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:39:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:34,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:39:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:34,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:39:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:34,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:39:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:34,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-23 18:39:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:34,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-23 18:39:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:34,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 649 [2020-10-23 18:39:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:35,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1843 backedges. 640 proven. 239 refuted. 0 times theorem prover too weak. 964 trivial. 0 not checked. [2020-10-23 18:39:35,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289560621] [2020-10-23 18:39:35,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70749796] [2020-10-23 18:39:35,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:35,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:39:35,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:39:36,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1843 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2020-10-23 18:39:36,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:39:36,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2020-10-23 18:39:36,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680169574] [2020-10-23 18:39:36,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:39:36,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:39:36,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:39:36,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:39:36,088 INFO L87 Difference]: Start difference. First operand 4663 states and 5126 transitions. Second operand 3 states. [2020-10-23 18:39:37,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:37,041 INFO L93 Difference]: Finished difference Result 5762 states and 6293 transitions. [2020-10-23 18:39:37,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:39:37,044 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 784 [2020-10-23 18:39:37,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:37,060 INFO L225 Difference]: With dead ends: 5762 [2020-10-23 18:39:37,060 INFO L226 Difference]: Without dead ends: 5759 [2020-10-23 18:39:37,063 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 806 GetRequests, 796 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:39:37,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2020-10-23 18:39:37,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 4481. [2020-10-23 18:39:37,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4481 states. [2020-10-23 18:39:37,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4481 states to 4481 states and 4921 transitions. [2020-10-23 18:39:37,178 INFO L78 Accepts]: Start accepts. Automaton has 4481 states and 4921 transitions. Word has length 784 [2020-10-23 18:39:37,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:37,179 INFO L481 AbstractCegarLoop]: Abstraction has 4481 states and 4921 transitions. [2020-10-23 18:39:37,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:39:37,180 INFO L276 IsEmpty]: Start isEmpty. Operand 4481 states and 4921 transitions. [2020-10-23 18:39:37,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2020-10-23 18:39:37,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:39:37,194 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:39:37,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:37,408 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:39:37,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:39:37,408 INFO L82 PathProgramCache]: Analyzing trace with hash -562348774, now seen corresponding path program 1 times [2020-10-23 18:39:37,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:39:37,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771901833] [2020-10-23 18:39:37,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:39:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:37,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:39:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:37,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:39:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:37,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:39:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:37,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:39:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:37,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-23 18:39:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:38,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-23 18:39:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:38,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 649 [2020-10-23 18:39:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:38,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1933 backedges. 640 proven. 257 refuted. 0 times theorem prover too weak. 1036 trivial. 0 not checked. [2020-10-23 18:39:38,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771901833] [2020-10-23 18:39:38,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937918802] [2020-10-23 18:39:38,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:39,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:39:39,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:39:39,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1933 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2020-10-23 18:39:39,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:39:39,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2020-10-23 18:39:39,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423148874] [2020-10-23 18:39:39,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:39:39,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:39:39,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:39:39,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:39:39,430 INFO L87 Difference]: Start difference. First operand 4481 states and 4921 transitions. Second operand 3 states. [2020-10-23 18:39:40,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:40,442 INFO L93 Difference]: Finished difference Result 9690 states and 10751 transitions. [2020-10-23 18:39:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:39:40,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 802 [2020-10-23 18:39:40,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:40,463 INFO L225 Difference]: With dead ends: 9690 [2020-10-23 18:39:40,463 INFO L226 Difference]: Without dead ends: 5581 [2020-10-23 18:39:40,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 814 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:39:40,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5581 states. [2020-10-23 18:39:40,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5581 to 5033. [2020-10-23 18:39:40,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5033 states. [2020-10-23 18:39:40,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5033 states to 5033 states and 5573 transitions. [2020-10-23 18:39:40,587 INFO L78 Accepts]: Start accepts. Automaton has 5033 states and 5573 transitions. Word has length 802 [2020-10-23 18:39:40,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:40,588 INFO L481 AbstractCegarLoop]: Abstraction has 5033 states and 5573 transitions. [2020-10-23 18:39:40,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:39:40,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5033 states and 5573 transitions. [2020-10-23 18:39:40,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 868 [2020-10-23 18:39:40,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:39:40,606 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-23 18:39:40,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-23 18:39:40,820 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:39:40,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:39:40,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1860338470, now seen corresponding path program 1 times [2020-10-23 18:39:40,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:39:40,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620527931] [2020-10-23 18:39:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:39:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:41,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:39:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:41,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:39:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:41,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:39:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:41,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:39:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:41,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-23 18:39:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:41,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-23 18:39:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:41,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 649 [2020-10-23 18:39:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:42,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2044 backedges. 640 proven. 286 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2020-10-23 18:39:42,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620527931] [2020-10-23 18:39:42,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340917022] [2020-10-23 18:39:42,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:42,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:39:42,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:39:42,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2044 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 1735 trivial. 0 not checked. [2020-10-23 18:39:42,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:39:42,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2020-10-23 18:39:42,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257103900] [2020-10-23 18:39:42,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:39:42,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:39:42,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:39:42,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:39:42,871 INFO L87 Difference]: Start difference. First operand 5033 states and 5573 transitions. Second operand 3 states. [2020-10-23 18:39:43,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:43,818 INFO L93 Difference]: Finished difference Result 10237 states and 11331 transitions. [2020-10-23 18:39:43,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:39:43,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 867 [2020-10-23 18:39:43,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:43,823 INFO L225 Difference]: With dead ends: 10237 [2020-10-23 18:39:43,823 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:39:43,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 889 GetRequests, 879 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:39:43,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:39:43,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:39:43,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:39:43,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:39:43,840 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 867 [2020-10-23 18:39:43,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:43,841 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:39:43,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:39:43,841 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:39:43,841 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:39:44,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-10-23 18:39:44,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:39:44,448 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 223 [2020-10-23 18:39:45,574 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 223 [2020-10-23 18:39:46,656 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 52 [2020-10-23 18:39:46,850 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 30 [2020-10-23 18:39:49,377 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 325 DAG size of output: 53 [2020-10-23 18:39:50,398 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 218 DAG size of output: 52 [2020-10-23 18:39:50,536 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-10-23 18:39:51,459 WARN L193 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 39 [2020-10-23 18:39:51,464 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:39:51,464 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:39:51,464 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:39:51,464 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:39:51,464 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:39:51,464 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~inputA~0 |old(~inputA~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a15~0 |old(~a15~0)|) (= |old(#valid)| |#valid|) (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#t~string7.base)| |#t~string7.base|)) [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-23 18:39:51,465 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-23 18:39:51,466 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-23 18:39:51,467 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,468 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,468 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,468 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-23 18:39:51,468 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-23 18:39:51,468 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-23 18:39:51,468 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-23 18:39:51,469 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-23 18:39:51,469 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-23 18:39:51,469 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-23 18:39:51,469 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,469 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,470 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,470 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-23 18:39:51,470 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-23 18:39:51,470 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-23 18:39:51,470 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-23 18:39:51,470 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-23 18:39:51,470 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,470 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-23 18:39:51,470 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-23 18:39:51,470 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-23 18:39:51,470 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-23 18:39:51,470 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,470 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-23 18:39:51,471 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-23 18:39:51,472 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-23 18:39:51,472 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-23 18:39:51,472 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-23 18:39:51,472 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,472 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,472 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,472 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-23 18:39:51,472 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse0 (= ~a21~0 |old(~a21~0)|)) (.cse1 (= ~a12~0 |old(~a12~0)|)) (.cse2 (= ~a15~0 |old(~a15~0)|)) (.cse3 (= |old(~a24~0)| 1))) (let ((.cse6 (= 5 |old(~a15~0)|)) (.cse5 (not .cse3)) (.cse7 (and .cse0 (= ~a24~0 1) .cse1 .cse2)) (.cse4 (not (<= |old(~a15~0)| 5)))) (and (or (and (= ~a24~0 |old(~a24~0)|) .cse0 .cse1 .cse2) (not (<= |old(~a21~0)| 7)) .cse3 (not (<= (+ |old(~a12~0)| 49) 0)) .cse4) (or .cse5 .cse6 .cse7 (not (<= |old(~a12~0)| 11))) (or (and (or (= 10 |old(~a21~0)|) .cse5 .cse6) (or .cse5 (not (<= 7 |old(~a15~0)|)))) .cse7) (or (and (not (< 0 (+ |old(~a12~0)| 43))) (= 7 |old(~a21~0)|)) .cse5 .cse7 .cse4)))) [2020-10-23 18:39:51,472 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-23 18:39:51,473 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-23 18:39:51,474 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-23 18:39:51,474 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-23 18:39:51,474 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,474 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,474 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,474 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-23 18:39:51,474 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-23 18:39:51,474 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-23 18:39:51,474 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-23 18:39:51,474 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-23 18:39:51,475 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-23 18:39:51,475 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-23 18:39:51,475 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-23 18:39:51,475 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,475 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,475 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,475 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-23 18:39:51,475 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-23 18:39:51,475 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-23 18:39:51,475 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-23 18:39:51,475 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-23 18:39:51,476 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-23 18:39:51,476 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-23 18:39:51,476 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-23 18:39:51,476 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,476 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,476 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,476 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-23 18:39:51,476 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-23 18:39:51,476 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-23 18:39:51,476 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-23 18:39:51,476 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-23 18:39:51,476 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-23 18:39:51,477 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-23 18:39:51,477 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-23 18:39:51,477 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,477 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,477 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-23 18:39:51,477 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-23 18:39:51,477 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-23 18:39:51,477 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-23 18:39:51,477 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-23 18:39:51,477 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-23 18:39:51,477 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-23 18:39:51,477 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-23 18:39:51,478 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,478 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,478 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-23 18:39:51,478 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-23 18:39:51,478 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-23 18:39:51,478 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-23 18:39:51,478 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-23 18:39:51,478 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-23 18:39:51,478 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,478 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,478 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-23 18:39:51,479 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-23 18:39:51,479 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-23 18:39:51,479 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-23 18:39:51,479 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-23 18:39:51,479 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-23 18:39:51,479 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-23 18:39:51,479 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-23 18:39:51,479 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,479 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,479 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-23 18:39:51,479 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-23 18:39:51,480 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-23 18:39:51,480 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-23 18:39:51,480 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,480 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-23 18:39:51,480 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-23 18:39:51,480 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-23 18:39:51,480 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,480 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,480 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-23 18:39:51,480 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-23 18:39:51,480 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-23 18:39:51,480 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-23 18:39:51,481 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-23 18:39:51,481 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-23 18:39:51,481 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,481 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,481 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-23 18:39:51,481 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,481 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-23 18:39:51,481 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-23 18:39:51,481 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-23 18:39:51,482 INFO L270 CegarLoopResult]: At program point L156(line 156) the Hoare annotation is: (let ((.cse3 (= |old(~a24~0)| 1))) (let ((.cse1 (= 5 |old(~a15~0)|)) (.cse0 (not .cse3)) (.cse2 (not (<= |old(~a15~0)| 5)))) (and (or (= 10 |old(~a21~0)|) .cse0 .cse1) (or .cse0 .cse1 (not (<= |old(~a12~0)| 11))) (or .cse0 (not (<= 7 |old(~a15~0)|))) (or (and (not (< 0 (+ |old(~a12~0)| 43))) (= 7 |old(~a21~0)|)) .cse0 .cse2) (or (not (<= |old(~a21~0)| 7)) .cse3 (not (<= (+ |old(~a12~0)| 49) 0)) .cse2)))) [2020-10-23 18:39:51,482 INFO L274 CegarLoopResult]: For program point L156-1(line 156) no Hoare annotation was computed. [2020-10-23 18:39:51,482 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-23 18:39:51,482 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-23 18:39:51,482 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-23 18:39:51,482 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-23 18:39:51,482 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-23 18:39:51,482 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-23 18:39:51,482 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,482 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,483 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,483 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-23 18:39:51,483 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-23 18:39:51,483 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-23 18:39:51,483 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-23 18:39:51,483 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-23 18:39:51,483 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-23 18:39:51,483 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-23 18:39:51,483 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-23 18:39:51,483 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,483 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,483 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,484 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-23 18:39:51,484 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-23 18:39:51,484 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-23 18:39:51,484 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-23 18:39:51,484 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-23 18:39:51,484 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-23 18:39:51,484 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-23 18:39:51,484 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-23 18:39:51,484 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,484 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,484 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,484 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-23 18:39:51,485 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-23 18:39:51,485 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-23 18:39:51,485 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-23 18:39:51,485 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-23 18:39:51,485 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-23 18:39:51,485 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-23 18:39:51,485 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-23 18:39:51,485 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-23 18:39:51,485 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,485 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,486 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:51,486 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:39:51,486 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 8 ~a15~0) (<= (+ ~a12~0 49) 0) (= ~a24~0 1) (<= ~a15~0 8) (= 7 ~a21~0)) [2020-10-23 18:39:51,486 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:39:51,486 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:39:51,486 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= |old(~a24~0)| 1)) (not (<= 8 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= (+ |old(~a12~0)| 49) 0)) (and (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0) (= ~a15~0 |old(~a15~0)|))) [2020-10-23 18:39:51,487 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (let ((.cse2 (<= ~a15~0 5)) (.cse1 (not (= 5 ~a15~0))) (.cse0 (= ~a24~0 1))) (or (not (= 7 |old(~a21~0)|)) (and (<= 7 ~a15~0) .cse0) (and .cse1 (<= ~a12~0 11) .cse0) (not (= |old(~a24~0)| 1)) (and .cse2 (or (< 0 (+ ~a12~0 43)) (not (= 7 ~a21~0))) .cse0) (not (<= 8 |old(~a15~0)|)) (and (<= ~a21~0 7) .cse2 (<= (+ ~a12~0 49) 0) (not .cse0)) (not (<= |old(~a15~0)| 8)) (not (<= (+ |old(~a12~0)| 49) 0)) (and (not (= ~a21~0 10)) .cse1 .cse0))) [2020-10-23 18:39:51,487 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-23 18:39:51,487 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-23 18:39:51,487 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-23 18:39:51,487 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse2 (<= ~a15~0 5)) (.cse1 (not (= 5 ~a15~0))) (.cse0 (= ~a24~0 1))) (or (not (= 7 |old(~a21~0)|)) (and (<= 7 ~a15~0) .cse0) (and .cse1 (<= ~a12~0 11) .cse0) (not (= |old(~a24~0)| 1)) (and .cse2 (or (< 0 (+ ~a12~0 43)) (not (= 7 ~a21~0))) .cse0) (not (<= 8 |old(~a15~0)|)) (and (<= ~a21~0 7) .cse2 (<= (+ ~a12~0 49) 0) (not .cse0)) (not (<= |old(~a15~0)| 8)) (not (<= (+ |old(~a12~0)| 49) 0)) (and (not (= ~a21~0 10)) .cse1 .cse0))) [2020-10-23 18:39:51,487 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-23 18:39:51,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:39:51 BoogieIcfgContainer [2020-10-23 18:39:51,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:39:51,512 INFO L168 Benchmark]: Toolchain (without parser) took 76359.40 ms. Allocated memory was 152.0 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 124.6 MB in the beginning and 524.7 MB in the end (delta: -400.1 MB). Peak memory consumption was 730.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:39:51,513 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory was 125.1 MB in the beginning and 125.0 MB in the end (delta: 98.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:39:51,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 826.63 ms. Allocated memory is still 152.0 MB. Free memory was 124.1 MB in the beginning and 92.0 MB in the end (delta: 32.1 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:39:51,514 INFO L168 Benchmark]: Boogie Preprocessor took 152.53 ms. Allocated memory is still 152.0 MB. Free memory was 92.0 MB in the beginning and 86.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:39:51,514 INFO L168 Benchmark]: RCFGBuilder took 2127.63 ms. Allocated memory was 152.0 MB in the beginning and 196.1 MB in the end (delta: 44.0 MB). Free memory was 86.3 MB in the beginning and 145.1 MB in the end (delta: -58.7 MB). Peak memory consumption was 44.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:39:51,515 INFO L168 Benchmark]: TraceAbstraction took 73240.10 ms. Allocated memory was 196.1 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 144.5 MB in the beginning and 524.7 MB in the end (delta: -380.2 MB). Peak memory consumption was 706.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:39:51,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory was 125.1 MB in the beginning and 125.0 MB in the end (delta: 98.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 826.63 ms. Allocated memory is still 152.0 MB. Free memory was 124.1 MB in the beginning and 92.0 MB in the end (delta: 32.1 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 152.53 ms. Allocated memory is still 152.0 MB. Free memory was 92.0 MB in the beginning and 86.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2127.63 ms. Allocated memory was 152.0 MB in the beginning and 196.1 MB in the end (delta: 44.0 MB). Free memory was 86.3 MB in the beginning and 145.1 MB in the end (delta: -58.7 MB). Peak memory consumption was 44.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 73240.10 ms. Allocated memory was 196.1 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 144.5 MB in the beginning and 524.7 MB in the end (delta: -380.2 MB). Peak memory consumption was 706.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 882]: Loop Invariant Derived loop invariant: ((((((((!(7 == \old(a21)) || (7 <= a15 && a24 == 1)) || ((!(5 == a15) && a12 <= 11) && a24 == 1)) || !(\old(a24) == 1)) || ((a15 <= 5 && (0 < a12 + 43 || !(7 == a21))) && a24 == 1)) || !(8 <= \old(a15))) || (((a21 <= 7 && a15 <= 5) && a12 + 49 <= 0) && !(a24 == 1))) || !(\old(a15) <= 8)) || !(\old(a12) + 49 <= 0)) || ((!(a21 == 10) && !(5 == a15)) && a24 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 65.7s, OverallIterations: 13, TraceHistogramMax: 7, AutomataDifference: 43.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 663 SDtfs, 12196 SDslu, 512 SDs, 0 SdLazy, 15019 SolverSat, 3570 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6254 GetRequests, 6020 SyntacticMatches, 6 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1614 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5033occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 4702 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 361 PreInvPairs, 429 NumberOfFragments, 483 HoareAnnotationTreeSize, 361 FomulaSimplifications, 94192 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 33351 FormulaSimplificationTreeSizeReductionInter, 5.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 11771 NumberOfCodeBlocks, 11771 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 11746 ConstructedInterpolants, 0 QuantifiedInterpolants, 14767613 SizeOfPredicates, 14 NumberOfNonLiveVariables, 9656 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 25 InterpolantComputations, 8 PerfectInterpolantSequences, 20210/21334 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...