/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/Problem02_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:32:34,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:32:34,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:32:34,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:32:34,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:32:34,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:32:34,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:32:34,734 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 18:32:34,802 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:32:34,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:32:34,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:32:34,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:32:34,811 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:32:34,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:32:34,812 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:32:34,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:32:34,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:32:34,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:32:34,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:32:34,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:32:34,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:32:34,813 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:32:34,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:32:34,814 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:32:34,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:32:34,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:32:34,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:32:34,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:32:34,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:32:34,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:32:34,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:32:34,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:32:34,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:32:34,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:32:34,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:32:34,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:32:34,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:32:34,820 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:32:35,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:32:35,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:32:35,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:32:35,407 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:32:35,408 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:32:35,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label01.c [2020-10-23 18:32:35,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd0bd2423/422f1b4b48d14a6592947ff421aea319/FLAGf47a1e5e3 [2020-10-23 18:32:36,394 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:32:36,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label01.c [2020-10-23 18:32:36,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd0bd2423/422f1b4b48d14a6592947ff421aea319/FLAGf47a1e5e3 [2020-10-23 18:32:36,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd0bd2423/422f1b4b48d14a6592947ff421aea319 [2020-10-23 18:32:36,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:32:36,585 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:32:36,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:32:36,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:32:36,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:32:36,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:32:36" (1/1) ... [2020-10-23 18:32:36,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@155d411a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:36, skipping insertion in model container [2020-10-23 18:32:36,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:32:36" (1/1) ... [2020-10-23 18:32:36,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:32:36,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:32:37,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:32:37,279 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:32:37,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:32:37,584 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:32:37,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:37 WrapperNode [2020-10-23 18:32:37,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:32:37,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:32:37,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:32:37,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:32:37,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:37" (1/1) ... [2020-10-23 18:32:37,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:37" (1/1) ... [2020-10-23 18:32:37,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:37" (1/1) ... [2020-10-23 18:32:37,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:37" (1/1) ... [2020-10-23 18:32:37,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:37" (1/1) ... [2020-10-23 18:32:37,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:37" (1/1) ... [2020-10-23 18:32:37,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:37" (1/1) ... [2020-10-23 18:32:37,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:32:37,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:32:37,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:32:37,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:32:37,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:37" (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 18:32:37,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:32:37,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:32:37,900 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:32:37,901 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:32:37,901 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:32:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:32:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:32:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:32:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:32:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:32:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:32:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:32:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:32:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:32:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:32:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:32:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:32:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:32:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:32:39,768 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:32:39,768 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:32:39,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:32:39 BoogieIcfgContainer [2020-10-23 18:32:39,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:32:39,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:32:39,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:32:39,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:32:39,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:32:36" (1/3) ... [2020-10-23 18:32:39,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e83a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:32:39, skipping insertion in model container [2020-10-23 18:32:39,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:37" (2/3) ... [2020-10-23 18:32:39,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e83a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:32:39, skipping insertion in model container [2020-10-23 18:32:39,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:32:39" (3/3) ... [2020-10-23 18:32:39,783 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label01.c [2020-10-23 18:32:39,798 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:32:39,805 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:32:39,821 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:32:39,858 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:32:39,858 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:32:39,858 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:32:39,858 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:32:39,858 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:32:39,859 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:32:39,859 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:32:39,859 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:32:39,888 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-23 18:32:39,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-23 18:32:39,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:39,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:32:39,906 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:39,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:39,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1315389285, now seen corresponding path program 1 times [2020-10-23 18:32:39,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:39,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017229937] [2020-10-23 18:32:39,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:40,641 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 18:32:40,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:40,760 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 18:32:40,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017229937] [2020-10-23 18:32:40,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:32:40,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:32:40,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864223530] [2020-10-23 18:32:40,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:32:40,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:40,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:32:40,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:32:40,800 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-23 18:32:43,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:43,183 INFO L93 Difference]: Finished difference Result 676 states and 1131 transitions. [2020-10-23 18:32:43,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:32:43,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2020-10-23 18:32:43,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:43,206 INFO L225 Difference]: With dead ends: 676 [2020-10-23 18:32:43,207 INFO L226 Difference]: Without dead ends: 342 [2020-10-23 18:32:43,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:32:43,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-23 18:32:43,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 333. [2020-10-23 18:32:43,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-10-23 18:32:43,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 481 transitions. [2020-10-23 18:32:43,336 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 481 transitions. Word has length 120 [2020-10-23 18:32:43,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:43,338 INFO L481 AbstractCegarLoop]: Abstraction has 333 states and 481 transitions. [2020-10-23 18:32:43,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:32:43,338 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 481 transitions. [2020-10-23 18:32:43,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-23 18:32:43,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:43,346 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:32:43,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:32:43,346 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:43,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:43,347 INFO L82 PathProgramCache]: Analyzing trace with hash 606977433, now seen corresponding path program 1 times [2020-10-23 18:32:43,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:43,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093693502] [2020-10-23 18:32:43,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:43,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:43,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:43,756 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:32:43,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093693502] [2020-10-23 18:32:43,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:32:43,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:32:43,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321701831] [2020-10-23 18:32:43,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:32:43,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:43,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:32:43,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:32:43,770 INFO L87 Difference]: Start difference. First operand 333 states and 481 transitions. Second operand 7 states. [2020-10-23 18:32:43,944 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-23 18:32:44,504 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-23 18:32:46,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:46,122 INFO L93 Difference]: Finished difference Result 982 states and 1451 transitions. [2020-10-23 18:32:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:32:46,122 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 128 [2020-10-23 18:32:46,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:46,130 INFO L225 Difference]: With dead ends: 982 [2020-10-23 18:32:46,130 INFO L226 Difference]: Without dead ends: 655 [2020-10-23 18:32:46,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:32:46,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2020-10-23 18:32:46,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 640. [2020-10-23 18:32:46,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2020-10-23 18:32:46,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 886 transitions. [2020-10-23 18:32:46,213 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 886 transitions. Word has length 128 [2020-10-23 18:32:46,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:46,213 INFO L481 AbstractCegarLoop]: Abstraction has 640 states and 886 transitions. [2020-10-23 18:32:46,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:32:46,214 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 886 transitions. [2020-10-23 18:32:46,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-23 18:32:46,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:46,219 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:32:46,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:32:46,220 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:46,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:46,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1924460320, now seen corresponding path program 1 times [2020-10-23 18:32:46,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:46,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430724814] [2020-10-23 18:32:46,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:46,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:46,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:32:46,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430724814] [2020-10-23 18:32:46,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:32:46,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:32:46,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599536187] [2020-10-23 18:32:46,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:32:46,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:46,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:32:46,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:32:46,531 INFO L87 Difference]: Start difference. First operand 640 states and 886 transitions. Second operand 7 states. [2020-10-23 18:32:46,694 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:32:48,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:48,704 INFO L93 Difference]: Finished difference Result 1919 states and 2803 transitions. [2020-10-23 18:32:48,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:32:48,705 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2020-10-23 18:32:48,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:48,716 INFO L225 Difference]: With dead ends: 1919 [2020-10-23 18:32:48,716 INFO L226 Difference]: Without dead ends: 1285 [2020-10-23 18:32:48,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:32:48,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2020-10-23 18:32:48,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1253. [2020-10-23 18:32:48,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1253 states. [2020-10-23 18:32:48,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1707 transitions. [2020-10-23 18:32:48,791 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1707 transitions. Word has length 131 [2020-10-23 18:32:48,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:48,791 INFO L481 AbstractCegarLoop]: Abstraction has 1253 states and 1707 transitions. [2020-10-23 18:32:48,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:32:48,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1707 transitions. [2020-10-23 18:32:48,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-23 18:32:48,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:48,800 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:32:48,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 18:32:48,801 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:48,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:48,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1711550532, now seen corresponding path program 1 times [2020-10-23 18:32:48,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:48,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219673462] [2020-10-23 18:32:48,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:49,133 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 18:32:49,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:49,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:49,229 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:32:49,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219673462] [2020-10-23 18:32:49,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839530320] [2020-10-23 18:32:49,230 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 18:32:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:49,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-23 18:32:49,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:32:49,743 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-23 18:32:49,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:32:49,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2020-10-23 18:32:49,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609795260] [2020-10-23 18:32:49,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 18:32:49,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:49,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 18:32:49,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:32:49,747 INFO L87 Difference]: Start difference. First operand 1253 states and 1707 transitions. Second operand 9 states. [2020-10-23 18:32:49,901 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:32:50,365 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-23 18:32:57,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:57,053 INFO L93 Difference]: Finished difference Result 5391 states and 8163 transitions. [2020-10-23 18:32:57,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-23 18:32:57,055 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 133 [2020-10-23 18:32:57,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:57,088 INFO L225 Difference]: With dead ends: 5391 [2020-10-23 18:32:57,088 INFO L226 Difference]: Without dead ends: 4144 [2020-10-23 18:32:57,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=212, Invalid=600, Unknown=0, NotChecked=0, Total=812 [2020-10-23 18:32:57,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4144 states. [2020-10-23 18:32:57,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4144 to 3805. [2020-10-23 18:32:57,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3805 states. [2020-10-23 18:32:57,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3805 states to 3805 states and 5185 transitions. [2020-10-23 18:32:57,318 INFO L78 Accepts]: Start accepts. Automaton has 3805 states and 5185 transitions. Word has length 133 [2020-10-23 18:32:57,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:57,319 INFO L481 AbstractCegarLoop]: Abstraction has 3805 states and 5185 transitions. [2020-10-23 18:32:57,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 18:32:57,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3805 states and 5185 transitions. [2020-10-23 18:32:57,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-23 18:32:57,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:57,332 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:32:57,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:57,547 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:57,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:57,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1796792343, now seen corresponding path program 1 times [2020-10-23 18:32:57,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:57,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449353467] [2020-10-23 18:32:57,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:57,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:57,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:57,860 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:32:57,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449353467] [2020-10-23 18:32:57,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:32:57,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:32:57,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916263897] [2020-10-23 18:32:57,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:32:57,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:57,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:32:57,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:32:57,865 INFO L87 Difference]: Start difference. First operand 3805 states and 5185 transitions. Second operand 8 states. [2020-10-23 18:32:58,004 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:33:01,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:01,131 INFO L93 Difference]: Finished difference Result 9384 states and 13008 transitions. [2020-10-23 18:33:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 18:33:01,132 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2020-10-23 18:33:01,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:01,167 INFO L225 Difference]: With dead ends: 9384 [2020-10-23 18:33:01,167 INFO L226 Difference]: Without dead ends: 5585 [2020-10-23 18:33:01,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:33:01,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5585 states. [2020-10-23 18:33:01,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5585 to 5429. [2020-10-23 18:33:01,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5429 states. [2020-10-23 18:33:01,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5429 states to 5429 states and 6821 transitions. [2020-10-23 18:33:01,420 INFO L78 Accepts]: Start accepts. Automaton has 5429 states and 6821 transitions. Word has length 155 [2020-10-23 18:33:01,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:01,422 INFO L481 AbstractCegarLoop]: Abstraction has 5429 states and 6821 transitions. [2020-10-23 18:33:01,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:33:01,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5429 states and 6821 transitions. [2020-10-23 18:33:01,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-23 18:33:01,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:01,446 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:01,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 18:33:01,447 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:01,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:01,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1037052658, now seen corresponding path program 1 times [2020-10-23 18:33:01,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:01,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473758055] [2020-10-23 18:33:01,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:01,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:33:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:01,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:33:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:01,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:33:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:01,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-23 18:33:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:01,845 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-23 18:33:01,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473758055] [2020-10-23 18:33:01,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984819843] [2020-10-23 18:33:01,846 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 18:33:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:02,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:33:02,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:33:02,146 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 18:33:02,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:33:02,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:33:02,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626736767] [2020-10-23 18:33:02,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:33:02,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:33:02,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:33:02,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:33:02,149 INFO L87 Difference]: Start difference. First operand 5429 states and 6821 transitions. Second operand 10 states. [2020-10-23 18:33:03,221 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-10-23 18:33:04,399 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-10-23 18:33:07,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:07,080 INFO L93 Difference]: Finished difference Result 12946 states and 16617 transitions. [2020-10-23 18:33:07,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 18:33:07,081 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2020-10-23 18:33:07,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:07,123 INFO L225 Difference]: With dead ends: 12946 [2020-10-23 18:33:07,123 INFO L226 Difference]: Without dead ends: 6565 [2020-10-23 18:33:07,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-10-23 18:33:07,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6565 states. [2020-10-23 18:33:07,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6565 to 6389. [2020-10-23 18:33:07,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6389 states. [2020-10-23 18:33:07,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6389 states to 6389 states and 7338 transitions. [2020-10-23 18:33:07,371 INFO L78 Accepts]: Start accepts. Automaton has 6389 states and 7338 transitions. Word has length 185 [2020-10-23 18:33:07,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:07,371 INFO L481 AbstractCegarLoop]: Abstraction has 6389 states and 7338 transitions. [2020-10-23 18:33:07,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:33:07,372 INFO L276 IsEmpty]: Start isEmpty. Operand 6389 states and 7338 transitions. [2020-10-23 18:33:07,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-23 18:33:07,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:07,389 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:07,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:07,604 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:07,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:07,605 INFO L82 PathProgramCache]: Analyzing trace with hash -149666893, now seen corresponding path program 1 times [2020-10-23 18:33:07,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:07,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497623229] [2020-10-23 18:33:07,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:07,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:33:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:07,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:33:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:07,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:33:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:07,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-23 18:33:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:07,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-23 18:33:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 96 proven. 43 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-23 18:33:07,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497623229] [2020-10-23 18:33:07,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422408375] [2020-10-23 18:33:07,926 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 18:33:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:08,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:33:08,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:33:08,268 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-23 18:33:08,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:33:08,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:33:08,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871513374] [2020-10-23 18:33:08,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:33:08,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:33:08,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:33:08,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:33:08,278 INFO L87 Difference]: Start difference. First operand 6389 states and 7338 transitions. Second operand 10 states. [2020-10-23 18:33:09,937 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-23 18:33:10,385 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-10-23 18:33:10,709 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-10-23 18:33:14,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:14,353 INFO L93 Difference]: Finished difference Result 11952 states and 13613 transitions. [2020-10-23 18:33:14,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-23 18:33:14,354 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 212 [2020-10-23 18:33:14,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:14,379 INFO L225 Difference]: With dead ends: 11952 [2020-10-23 18:33:14,380 INFO L226 Difference]: Without dead ends: 5100 [2020-10-23 18:33:14,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=208, Invalid=848, Unknown=0, NotChecked=0, Total=1056 [2020-10-23 18:33:14,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5100 states. [2020-10-23 18:33:14,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5100 to 4788. [2020-10-23 18:33:14,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4788 states. [2020-10-23 18:33:14,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4788 states to 4788 states and 5171 transitions. [2020-10-23 18:33:14,554 INFO L78 Accepts]: Start accepts. Automaton has 4788 states and 5171 transitions. Word has length 212 [2020-10-23 18:33:14,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:14,555 INFO L481 AbstractCegarLoop]: Abstraction has 4788 states and 5171 transitions. [2020-10-23 18:33:14,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:33:14,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4788 states and 5171 transitions. [2020-10-23 18:33:14,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-23 18:33:14,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:14,569 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:33:14,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:14,784 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:14,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:14,785 INFO L82 PathProgramCache]: Analyzing trace with hash -226922033, now seen corresponding path program 1 times [2020-10-23 18:33:14,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:14,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92181514] [2020-10-23 18:33:14,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:15,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:33:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:15,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:33:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:15,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-23 18:33:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:15,354 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 98 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-23 18:33:15,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92181514] [2020-10-23 18:33:15,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926298569] [2020-10-23 18:33:15,355 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 18:33:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:15,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:33:15,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:33:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-23 18:33:15,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:33:15,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-10-23 18:33:15,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4494504] [2020-10-23 18:33:15,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:33:15,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:33:15,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:33:15,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:33:15,652 INFO L87 Difference]: Start difference. First operand 4788 states and 5171 transitions. Second operand 3 states. [2020-10-23 18:33:16,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:16,288 INFO L93 Difference]: Finished difference Result 8394 states and 9054 transitions. [2020-10-23 18:33:16,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:33:16,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2020-10-23 18:33:16,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:16,290 INFO L225 Difference]: With dead ends: 8394 [2020-10-23 18:33:16,290 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:33:16,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:33:16,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:33:16,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:33:16,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:33:16,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:33:16,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2020-10-23 18:33:16,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:16,307 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:33:16,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:33:16,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:33:16,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:33:16,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:16,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:33:17,309 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 157 [2020-10-23 18:33:17,504 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 157 [2020-10-23 18:33:17,780 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 31 [2020-10-23 18:33:20,205 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 202 DAG size of output: 78 [2020-10-23 18:33:20,878 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 56 [2020-10-23 18:33:21,403 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 56 [2020-10-23 18:33:21,934 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 51 [2020-10-23 18:33:21,939 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:33:21,940 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:33:21,940 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:33:21,940 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:33:21,940 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:33:21,941 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-10-23 18:33:21,941 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:33:21,941 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-23 18:33:21,941 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-23 18:33:21,942 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-23 18:33:21,942 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-23 18:33:21,942 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-23 18:33:21,942 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-23 18:33:21,942 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-23 18:33:21,943 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-23 18:33:21,943 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-23 18:33:21,943 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-23 18:33:21,943 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-23 18:33:21,943 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-23 18:33:21,943 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-23 18:33:21,943 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-23 18:33:21,943 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-23 18:33:21,944 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,944 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,944 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,944 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,944 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,944 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-23 18:33:21,944 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-23 18:33:21,944 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-23 18:33:21,945 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-23 18:33:21,945 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-23 18:33:21,945 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-23 18:33:21,945 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-23 18:33:21,945 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-23 18:33:21,945 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-23 18:33:21,945 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-23 18:33:21,945 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-23 18:33:21,946 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-23 18:33:21,946 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-23 18:33:21,946 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,946 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,946 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,946 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,946 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-23 18:33:21,946 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,947 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-23 18:33:21,947 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-23 18:33:21,947 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-23 18:33:21,947 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-23 18:33:21,947 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-23 18:33:21,947 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-23 18:33:21,947 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-23 18:33:21,947 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-23 18:33:21,948 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-23 18:33:21,948 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-23 18:33:21,948 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-23 18:33:21,948 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-23 18:33:21,948 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-23 18:33:21,948 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-23 18:33:21,948 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-23 18:33:21,948 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,949 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,949 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,949 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,949 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,949 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-23 18:33:21,949 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-23 18:33:21,949 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-23 18:33:21,949 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-23 18:33:21,949 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-23 18:33:21,950 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-23 18:33:21,950 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-23 18:33:21,950 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-23 18:33:21,950 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-23 18:33:21,950 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-23 18:33:21,950 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-23 18:33:21,950 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,950 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,951 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,951 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,951 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,951 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-23 18:33:21,951 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-23 18:33:21,951 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-23 18:33:21,951 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-23 18:33:21,951 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-23 18:33:21,951 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-23 18:33:21,952 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-23 18:33:21,952 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-23 18:33:21,952 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-23 18:33:21,952 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-23 18:33:21,952 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-23 18:33:21,952 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-23 18:33:21,952 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-23 18:33:21,953 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,953 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,953 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,953 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,953 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,953 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-23 18:33:21,953 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-23 18:33:21,953 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-23 18:33:21,954 INFO L270 CegarLoopResult]: At program point L513(line 513) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~a25~0)|))) (.cse6 (not (= 10 |old(~a28~0)|))) (.cse5 (not (= |old(~a19~0)| 1))) (.cse8 (not (= 8 |old(~a17~0)|))) (.cse4 (not (= |old(~a25~0)| 1))) (.cse7 (= 11 |old(~a28~0)|)) (.cse2 (not (<= |old(~a19~0)| 0))) (.cse1 (= |old(~a17~0)| |old(~a28~0)|)) (.cse3 (not (= |old(~a11~0)| |old(~a25~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 (not (<= 10 |old(~a28~0)|)) (not (<= |old(~a11~0)| 0)) .cse1) (or .cse6 .cse0 .cse2 .cse1) (or .cse7 .cse8 .cse0 .cse2) (or .cse4 (not (<= |old(~a28~0)| 8)) .cse8 .cse2 .cse1) (or .cse4 .cse6 .cse8 .cse2) (or .cse6 .cse5 .cse0 .cse1) (or (not (<= |old(~a28~0)| 7)) .cse4 .cse5) (or .cse4 .cse5 .cse8) (or .cse5 .cse7 .cse8 .cse0 .cse1) (or .cse6 .cse5 .cse8) (or .cse4 .cse7 .cse2 .cse1 .cse3))) [2020-10-23 18:33:21,954 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-23 18:33:21,954 INFO L274 CegarLoopResult]: For program point L513-1(line 513) no Hoare annotation was computed. [2020-10-23 18:33:21,954 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-23 18:33:21,955 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-23 18:33:21,955 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-23 18:33:21,955 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-23 18:33:21,955 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,955 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,955 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-23 18:33:21,955 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-23 18:33:21,955 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-23 18:33:21,956 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-23 18:33:21,956 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-23 18:33:21,956 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-23 18:33:21,956 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-23 18:33:21,956 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,956 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,956 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,956 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,957 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-23 18:33:21,957 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,957 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-23 18:33:21,957 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,957 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-23 18:33:21,957 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-23 18:33:21,957 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-23 18:33:21,957 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-23 18:33:21,957 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-23 18:33:21,958 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-23 18:33:21,958 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-23 18:33:21,958 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-23 18:33:21,958 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-23 18:33:21,958 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-23 18:33:21,958 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-23 18:33:21,958 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-23 18:33:21,958 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-23 18:33:21,959 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-23 18:33:21,959 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,959 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,959 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,959 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,959 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,959 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,959 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-23 18:33:21,959 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-23 18:33:21,960 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-23 18:33:21,960 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-23 18:33:21,960 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-23 18:33:21,960 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-23 18:33:21,960 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-23 18:33:21,960 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-23 18:33:21,960 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-23 18:33:21,960 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-23 18:33:21,960 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-23 18:33:21,961 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,961 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,961 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,961 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,961 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,961 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,961 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-23 18:33:21,961 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-23 18:33:21,962 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-23 18:33:21,962 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-23 18:33:21,962 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-23 18:33:21,962 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-23 18:33:21,962 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-23 18:33:21,963 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse0 (= ~a28~0 |old(~a28~0)|)) (.cse17 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse9 (= ~a19~0 1)) (.cse19 (= ~a25~0 1))) (let ((.cse16 (= ~a25~0 ~a11~0)) (.cse18 (not (= |old(~a11~0)| |old(~a25~0)|))) (.cse11 (not (= 10 |old(~a28~0)|))) (.cse4 (= ~a19~0 |old(~a19~0)|)) (.cse10 (= ~a28~0 10)) (.cse8 (not (<= |old(~a19~0)| 0))) (.cse13 (not (= |old(~a25~0)| 1))) (.cse15 (and .cse0 .cse17 .cse1 .cse9 .cse19)) (.cse12 (not (= |old(~a19~0)| 1))) (.cse2 (= ~a25~0 |old(~a25~0)|)) (.cse3 (= ~a17~0 8)) (.cse5 (= 11 |old(~a28~0)|)) (.cse6 (not (= 8 |old(~a17~0)|))) (.cse7 (not (= 0 |old(~a25~0)|))) (.cse14 (= |old(~a17~0)| |old(~a28~0)|))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4) .cse5 .cse6 .cse7 .cse8) (or (and .cse1 .cse9 .cse2 .cse3 .cse10) .cse11 .cse12 .cse6) (or .cse13 .cse12 (not (<= 10 |old(~a28~0)|)) (not (<= |old(~a11~0)| 0)) .cse14 .cse15) (or .cse7 (and .cse0 .cse16 .cse17 .cse2 .cse4) .cse14 .cse8 .cse18) (or .cse13 (not (<= |old(~a28~0)| 8)) (and .cse0 .cse1 .cse3 .cse19 .cse4) .cse6 .cse8 .cse14) (or .cse13 .cse11 .cse6 (and .cse1 .cse3 .cse19 .cse4 .cse10) .cse8) (or .cse13 .cse12 (and .cse0 .cse1 .cse9 .cse3 .cse19) .cse6) (or .cse13 .cse5 (and .cse0 .cse16 .cse17 .cse19 .cse4) .cse8 .cse14 .cse18) (or (and .cse17 .cse1 .cse9 .cse2 .cse10) .cse11 .cse12 .cse7 .cse14) (or .cse11 (and .cse17 .cse1 .cse2 .cse4 .cse10) .cse7 .cse8 .cse14) (or (not (<= |old(~a28~0)| 7)) .cse13 .cse12 .cse15) (or .cse12 (and .cse0 .cse1 .cse9 .cse2 .cse3) .cse5 .cse6 .cse7 .cse14)))) [2020-10-23 18:33:21,963 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-23 18:33:21,963 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-23 18:33:21,963 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-23 18:33:21,963 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-23 18:33:21,963 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-23 18:33:21,963 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-23 18:33:21,963 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-23 18:33:21,964 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,964 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,964 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,964 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,964 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,964 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,964 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-23 18:33:21,964 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-23 18:33:21,965 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-23 18:33:21,965 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-23 18:33:21,965 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-23 18:33:21,965 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-23 18:33:21,965 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-23 18:33:21,965 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-23 18:33:21,965 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-23 18:33:21,965 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-23 18:33:21,965 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-23 18:33:21,966 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-23 18:33:21,966 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-23 18:33:21,966 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,966 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,966 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,966 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,966 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,966 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,966 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-23 18:33:21,967 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-23 18:33:21,967 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-23 18:33:21,967 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-23 18:33:21,967 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-23 18:33:21,967 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-23 18:33:21,967 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-23 18:33:21,967 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-23 18:33:21,967 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-23 18:33:21,967 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-23 18:33:21,967 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-23 18:33:21,968 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-23 18:33:21,968 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-23 18:33:21,968 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-23 18:33:21,968 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-23 18:33:21,968 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-23 18:33:21,968 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,968 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,968 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,968 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,969 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:21,969 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-23 18:33:21,969 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-23 18:33:21,969 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-23 18:33:21,969 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-23 18:33:21,969 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:33:21,969 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 0) (= ~a17~0 8) (<= ~a28~0 7)) [2020-10-23 18:33:21,969 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:33:21,970 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:33:21,970 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse6 (= ~a25~0 ~a11~0)) (.cse3 (= ~a28~0 10)) (.cse4 (not (= ~a28~0 ~a17~0))) (.cse5 (= ~a25~0 0)) (.cse7 (not (= ~a28~0 11))) (.cse0 (<= ~a19~0 0)) (.cse9 (<= ~a28~0 7)) (.cse8 (= ~a19~0 1)) (.cse1 (= ~a17~0 8)) (.cse2 (= ~a25~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= |old(~a19~0)| 1)) (not (<= |old(~a28~0)| 8)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and .cse4 .cse0 .cse5 .cse3) (and .cse4 .cse6 .cse0 .cse2 .cse7) (and .cse8 .cse1 .cse3) (and .cse4 .cse6 .cse0 .cse5) (and .cse4 .cse8 .cse5 .cse3) (and .cse4 .cse8 .cse5 .cse1 .cse7) (and .cse4 (<= ~a11~0 0) (<= 10 ~a28~0) .cse8 .cse2) (and .cse0 .cse5 .cse1 .cse7) (and .cse0 .cse1 .cse2 .cse9) (and .cse8 .cse2 .cse9) (= |old(~a17~0)| |old(~a28~0)|) (and .cse8 .cse1 .cse2) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-23 18:33:21,970 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (not (<= |old(~a28~0)| 8)) (and (= ~a28~0 |old(~a28~0)|) (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (= |old(~a17~0)| |old(~a28~0)|) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-23 18:33:21,970 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-23 18:33:21,970 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-23 18:33:21,971 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse6 (= ~a25~0 ~a11~0)) (.cse3 (= ~a28~0 10)) (.cse4 (not (= ~a28~0 ~a17~0))) (.cse5 (= ~a25~0 0)) (.cse7 (not (= ~a28~0 11))) (.cse0 (<= ~a19~0 0)) (.cse9 (<= ~a28~0 7)) (.cse8 (= ~a19~0 1)) (.cse1 (= ~a17~0 8)) (.cse2 (= ~a25~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= |old(~a19~0)| 1)) (not (<= |old(~a28~0)| 8)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and .cse4 .cse0 .cse5 .cse3) (and .cse4 .cse6 .cse0 .cse2 .cse7) (and .cse8 .cse1 .cse3) (and .cse4 .cse6 .cse0 .cse5) (and .cse4 .cse8 .cse5 .cse3) (and .cse4 .cse8 .cse5 .cse1 .cse7) (and .cse4 (<= ~a11~0 0) (<= 10 ~a28~0) .cse8 .cse2) (and .cse0 .cse5 .cse1 .cse7) (and .cse0 .cse1 .cse2 .cse9) (and .cse8 .cse2 .cse9) (= |old(~a17~0)| |old(~a28~0)|) (and .cse8 .cse1 .cse2) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-23 18:33:21,971 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-23 18:33:21,971 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-23 18:33:21,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:33:21 BoogieIcfgContainer [2020-10-23 18:33:21,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:33:21,997 INFO L168 Benchmark]: Toolchain (without parser) took 45417.11 ms. Allocated memory was 151.0 MB in the beginning and 566.2 MB in the end (delta: 415.2 MB). Free memory was 108.5 MB in the beginning and 487.8 MB in the end (delta: -379.3 MB). Peak memory consumption was 334.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:21,997 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 151.0 MB. Free memory is still 126.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:33:21,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 998.86 ms. Allocated memory is still 151.0 MB. Free memory was 107.9 MB in the beginning and 124.4 MB in the end (delta: -16.5 MB). Peak memory consumption was 13.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:21,999 INFO L168 Benchmark]: Boogie Preprocessor took 194.82 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 119.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:21,999 INFO L168 Benchmark]: RCFGBuilder took 1988.73 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 119.1 MB in the beginning and 108.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 54.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:22,000 INFO L168 Benchmark]: TraceAbstraction took 42221.83 ms. Allocated memory was 181.4 MB in the beginning and 566.2 MB in the end (delta: 384.8 MB). Free memory was 108.0 MB in the beginning and 487.8 MB in the end (delta: -379.8 MB). Peak memory consumption was 302.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:22,004 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 151.0 MB. Free memory is still 126.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 998.86 ms. Allocated memory is still 151.0 MB. Free memory was 107.9 MB in the beginning and 124.4 MB in the end (delta: -16.5 MB). Peak memory consumption was 13.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 194.82 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 119.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1988.73 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 119.1 MB in the beginning and 108.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 54.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 42221.83 ms. Allocated memory was 181.4 MB in the beginning and 566.2 MB in the end (delta: 384.8 MB). Free memory was 108.0 MB in the beginning and 487.8 MB in the end (delta: -379.8 MB). Peak memory consumption was 302.8 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: 608]: Loop Invariant Derived loop invariant: (((((((((((((((((((a19 <= 0 && a17 == 8) && a25 == 1) && a28 == 10) || !(\old(a19) == 1)) || !(\old(a28) <= 8)) || !(8 == \old(a17))) || !(0 == \old(a25))) || (((!(a28 == a17) && a19 <= 0) && a25 == 0) && a28 == 10)) || ((((!(a28 == a17) && a25 == a11) && a19 <= 0) && a25 == 1) && !(a28 == 11))) || ((a19 == 1 && a17 == 8) && a28 == 10)) || (((!(a28 == a17) && a25 == a11) && a19 <= 0) && a25 == 0)) || (((!(a28 == a17) && a19 == 1) && a25 == 0) && a28 == 10)) || ((((!(a28 == a17) && a19 == 1) && a25 == 0) && a17 == 8) && !(a28 == 11))) || ((((!(a28 == a17) && a11 <= 0) && 10 <= a28) && a19 == 1) && a25 == 1)) || (((a19 <= 0 && a25 == 0) && a17 == 8) && !(a28 == 11))) || (((a19 <= 0 && a17 == 8) && a25 == 1) && a28 <= 7)) || ((a19 == 1 && a25 == 1) && a28 <= 7)) || \old(a17) == \old(a28)) || ((a19 == 1 && a17 == 8) && a25 == 1)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 36.6s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 29.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 512 SDtfs, 7089 SDslu, 622 SDs, 0 SdLazy, 11106 SolverSat, 2222 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 938 GetRequests, 822 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6389occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 1039 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 396 PreInvPairs, 484 NumberOfFragments, 1108 HoareAnnotationTreeSize, 396 FomulaSimplifications, 39943 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 7177 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2046 NumberOfCodeBlocks, 2046 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2034 ConstructedInterpolants, 0 QuantifiedInterpolants, 1131058 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2135 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 839/907 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...