/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_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:32:39,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:32:39,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:32:39,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:32:39,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:32:39,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:32:39,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:32:39,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:32:39,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:32:39,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:32:39,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:32:39,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:32:39,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:32:39,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:32:39,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:32:39,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:32:39,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:32:39,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:32:39,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:32:39,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:32:39,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:32:39,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:32:39,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:32:39,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:32:39,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:32:39,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:32:39,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:32:39,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:32:39,967 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 18:32:40,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:32:40,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:32:40,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:32:40,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:32:40,024 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:32:40,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:32:40,024 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:32:40,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:32:40,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:32:40,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:32:40,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:32:40,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:32:40,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:32:40,027 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:32:40,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:32:40,027 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:32:40,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:32:40,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:32:40,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:32:40,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:32:40,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:32:40,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:32:40,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:32:40,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:32:40,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:32:40,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:32:40,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:32:40,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:32:40,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:32:40,031 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:32:40,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:32:40,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:32:40,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:32:40,481 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:32:40,482 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:32:40,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label04.c [2020-10-23 18:32:40,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1688c361f/6e7f12b688d34dd699c8a5b4cc123bb1/FLAGd6164236a [2020-10-23 18:32:41,377 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:32:41,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label04.c [2020-10-23 18:32:41,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1688c361f/6e7f12b688d34dd699c8a5b4cc123bb1/FLAGd6164236a [2020-10-23 18:32:41,570 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1688c361f/6e7f12b688d34dd699c8a5b4cc123bb1 [2020-10-23 18:32:41,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:32:41,587 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:32:41,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:32:41,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:32:41,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:32:41,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:32:41" (1/1) ... [2020-10-23 18:32:41,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b84abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:41, skipping insertion in model container [2020-10-23 18:32:41,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:32:41" (1/1) ... [2020-10-23 18:32:41,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:32:41,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:32:42,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:32:42,098 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:32:42,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:32:42,312 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:32:42,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:42 WrapperNode [2020-10-23 18:32:42,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:32:42,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:32:42,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:32:42,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:32:42,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:42" (1/1) ... [2020-10-23 18:32:42,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:42" (1/1) ... [2020-10-23 18:32:42,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:42" (1/1) ... [2020-10-23 18:32:42,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:42" (1/1) ... [2020-10-23 18:32:42,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:42" (1/1) ... [2020-10-23 18:32:42,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:42" (1/1) ... [2020-10-23 18:32:42,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:42" (1/1) ... [2020-10-23 18:32:42,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:32:42,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:32:42,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:32:42,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:32:42,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:42" (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 18:32:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:32:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:32:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:32:42,546 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:32:42,546 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:32:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:32:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:32:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:32:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:32:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:32:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:32:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:32:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:32:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:32:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:32:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:32:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:32:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:32:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:32:43,876 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:32:43,877 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:32:43,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:32:43 BoogieIcfgContainer [2020-10-23 18:32:43,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:32:43,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:32:43,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:32:43,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:32:43,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:32:41" (1/3) ... [2020-10-23 18:32:43,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cb6c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:32:43, skipping insertion in model container [2020-10-23 18:32:43,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:42" (2/3) ... [2020-10-23 18:32:43,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cb6c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:32:43, skipping insertion in model container [2020-10-23 18:32:43,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:32:43" (3/3) ... [2020-10-23 18:32:43,896 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label04.c [2020-10-23 18:32:43,909 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:32:43,915 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:32:43,928 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:32:43,970 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:32:43,970 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:32:43,970 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:32:43,970 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:32:43,970 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:32:43,971 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:32:43,971 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:32:43,971 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:32:44,006 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-23 18:32:44,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-23 18:32:44,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:44,022 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] [2020-10-23 18:32:44,023 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:44,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:44,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1457047349, now seen corresponding path program 1 times [2020-10-23 18:32:44,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:44,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557950304] [2020-10-23 18:32:44,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:44,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:44,767 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 18:32:44,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557950304] [2020-10-23 18:32:44,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:32:44,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:32:44,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502257977] [2020-10-23 18:32:44,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:32:44,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:44,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:32:44,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:32:44,805 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-23 18:32:44,980 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:32:46,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:46,970 INFO L93 Difference]: Finished difference Result 667 states and 1119 transitions. [2020-10-23 18:32:46,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:32:46,974 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 113 [2020-10-23 18:32:46,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:46,991 INFO L225 Difference]: With dead ends: 667 [2020-10-23 18:32:46,991 INFO L226 Difference]: Without dead ends: 342 [2020-10-23 18:32:47,000 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 18:32:47,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-23 18:32:47,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 338. [2020-10-23 18:32:47,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-23 18:32:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 489 transitions. [2020-10-23 18:32:47,088 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 489 transitions. Word has length 113 [2020-10-23 18:32:47,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:47,089 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 489 transitions. [2020-10-23 18:32:47,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:32:47,090 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 489 transitions. [2020-10-23 18:32:47,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-23 18:32:47,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:47,097 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] [2020-10-23 18:32:47,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:32:47,098 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:47,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:47,099 INFO L82 PathProgramCache]: Analyzing trace with hash -853206143, now seen corresponding path program 1 times [2020-10-23 18:32:47,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:47,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000123019] [2020-10-23 18:32:47,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:47,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:47,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:47,468 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 18:32:47,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000123019] [2020-10-23 18:32:47,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:32:47,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:32:47,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375586436] [2020-10-23 18:32:47,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:32:47,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:47,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:32:47,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:32:47,473 INFO L87 Difference]: Start difference. First operand 338 states and 489 transitions. Second operand 7 states. [2020-10-23 18:32:49,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:49,501 INFO L93 Difference]: Finished difference Result 991 states and 1464 transitions. [2020-10-23 18:32:49,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:32:49,502 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2020-10-23 18:32:49,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:49,509 INFO L225 Difference]: With dead ends: 991 [2020-10-23 18:32:49,509 INFO L226 Difference]: Without dead ends: 659 [2020-10-23 18:32:49,513 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 18:32:49,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2020-10-23 18:32:49,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 643. [2020-10-23 18:32:49,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-10-23 18:32:49,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 882 transitions. [2020-10-23 18:32:49,610 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 882 transitions. Word has length 121 [2020-10-23 18:32:49,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:49,611 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 882 transitions. [2020-10-23 18:32:49,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:32:49,611 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 882 transitions. [2020-10-23 18:32:49,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-23 18:32:49,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:49,627 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:32:49,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:32:49,627 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:49,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:49,630 INFO L82 PathProgramCache]: Analyzing trace with hash 3066477, now seen corresponding path program 1 times [2020-10-23 18:32:49,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:49,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265684563] [2020-10-23 18:32:49,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:49,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:49,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:49,931 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:32:49,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265684563] [2020-10-23 18:32:49,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:32:49,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:32:49,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850075321] [2020-10-23 18:32:49,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:32:49,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:49,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:32:49,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:32:49,944 INFO L87 Difference]: Start difference. First operand 643 states and 882 transitions. Second operand 7 states. [2020-10-23 18:32:52,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:52,065 INFO L93 Difference]: Finished difference Result 1925 states and 2783 transitions. [2020-10-23 18:32:52,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:32:52,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-10-23 18:32:52,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:52,082 INFO L225 Difference]: With dead ends: 1925 [2020-10-23 18:32:52,083 INFO L226 Difference]: Without dead ends: 1288 [2020-10-23 18:32:52,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:32:52,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2020-10-23 18:32:52,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1256. [2020-10-23 18:32:52,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2020-10-23 18:32:52,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1689 transitions. [2020-10-23 18:32:52,154 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1689 transitions. Word has length 127 [2020-10-23 18:32:52,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:52,154 INFO L481 AbstractCegarLoop]: Abstraction has 1256 states and 1689 transitions. [2020-10-23 18:32:52,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:32:52,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1689 transitions. [2020-10-23 18:32:52,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-23 18:32:52,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:52,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:32:52,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 18:32:52,161 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:52,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:52,162 INFO L82 PathProgramCache]: Analyzing trace with hash -26783824, now seen corresponding path program 1 times [2020-10-23 18:32:52,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:52,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236802133] [2020-10-23 18:32:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:52,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:52,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:32:52,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236802133] [2020-10-23 18:32:52,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:32:52,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:32:52,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850007264] [2020-10-23 18:32:52,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:32:52,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:52,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:32:52,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:32:52,447 INFO L87 Difference]: Start difference. First operand 1256 states and 1689 transitions. Second operand 8 states. [2020-10-23 18:32:52,582 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:32:52,808 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-23 18:32:55,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:55,439 INFO L93 Difference]: Finished difference Result 4330 states and 5975 transitions. [2020-10-23 18:32:55,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 18:32:55,440 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2020-10-23 18:32:55,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:55,460 INFO L225 Difference]: With dead ends: 4330 [2020-10-23 18:32:55,461 INFO L226 Difference]: Without dead ends: 3080 [2020-10-23 18:32:55,466 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 18:32:55,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3080 states. [2020-10-23 18:32:55,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3080 to 3054. [2020-10-23 18:32:55,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3054 states. [2020-10-23 18:32:55,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 3777 transitions. [2020-10-23 18:32:55,639 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 3777 transitions. Word has length 141 [2020-10-23 18:32:55,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:55,639 INFO L481 AbstractCegarLoop]: Abstraction has 3054 states and 3777 transitions. [2020-10-23 18:32:55,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:32:55,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 3777 transitions. [2020-10-23 18:32:55,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-23 18:32:55,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:55,650 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:32:55,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:32:55,651 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:55,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:55,651 INFO L82 PathProgramCache]: Analyzing trace with hash 122194462, now seen corresponding path program 1 times [2020-10-23 18:32:55,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:55,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697794896] [2020-10-23 18:32:55,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:55,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:55,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:55,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:32:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:55,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 18:32:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:55,891 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-23 18:32:55,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697794896] [2020-10-23 18:32:55,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604149251] [2020-10-23 18:32:55,892 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 18:32:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:56,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:32:56,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:32:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:32:56,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:32:56,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:32:56,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717182655] [2020-10-23 18:32:56,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:32:56,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:56,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:32:56,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:32:56,312 INFO L87 Difference]: Start difference. First operand 3054 states and 3777 transitions. Second operand 10 states. [2020-10-23 18:32:57,479 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-10-23 18:32:58,420 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-10-23 18:32:59,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:59,860 INFO L93 Difference]: Finished difference Result 7613 states and 9772 transitions. [2020-10-23 18:32:59,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-23 18:32:59,861 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 146 [2020-10-23 18:32:59,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:59,890 INFO L225 Difference]: With dead ends: 7613 [2020-10-23 18:32:59,890 INFO L226 Difference]: Without dead ends: 4565 [2020-10-23 18:32:59,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-23 18:32:59,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4565 states. [2020-10-23 18:33:00,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4565 to 4545. [2020-10-23 18:33:00,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4545 states. [2020-10-23 18:33:00,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 5617 transitions. [2020-10-23 18:33:00,072 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 5617 transitions. Word has length 146 [2020-10-23 18:33:00,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:00,075 INFO L481 AbstractCegarLoop]: Abstraction has 4545 states and 5617 transitions. [2020-10-23 18:33:00,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:33:00,075 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 5617 transitions. [2020-10-23 18:33:00,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 18:33:00,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:00,088 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2020-10-23 18:33:00,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:00,302 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:00,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:00,303 INFO L82 PathProgramCache]: Analyzing trace with hash 914758541, now seen corresponding path program 1 times [2020-10-23 18:33:00,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:00,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981760413] [2020-10-23 18:33:00,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:00,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:33:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:00,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:33:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:00,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:33:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:00,725 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-23 18:33:00,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981760413] [2020-10-23 18:33:00,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797488004] [2020-10-23 18:33:00,726 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 18:33:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:00,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:33:00,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:33:00,951 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 18:33:00,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:33:00,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-10-23 18:33:00,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729765269] [2020-10-23 18:33:00,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:33:00,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:33:00,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:33:00,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:33:00,954 INFO L87 Difference]: Start difference. First operand 4545 states and 5617 transitions. Second operand 3 states. [2020-10-23 18:33:01,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:01,743 INFO L93 Difference]: Finished difference Result 8936 states and 11048 transitions. [2020-10-23 18:33:01,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:33:01,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 18:33:01,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:01,772 INFO L225 Difference]: With dead ends: 8936 [2020-10-23 18:33:01,772 INFO L226 Difference]: Without dead ends: 4397 [2020-10-23 18:33:01,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 154 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 18:33:01,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4397 states. [2020-10-23 18:33:01,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4397 to 4109. [2020-10-23 18:33:01,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4109 states. [2020-10-23 18:33:01,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4109 states to 4109 states and 4783 transitions. [2020-10-23 18:33:01,937 INFO L78 Accepts]: Start accepts. Automaton has 4109 states and 4783 transitions. Word has length 148 [2020-10-23 18:33:01,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:01,938 INFO L481 AbstractCegarLoop]: Abstraction has 4109 states and 4783 transitions. [2020-10-23 18:33:01,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:33:01,938 INFO L276 IsEmpty]: Start isEmpty. Operand 4109 states and 4783 transitions. [2020-10-23 18:33:01,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-23 18:33:01,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:01,951 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-23 18:33:02,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:02,167 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:02,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:02,167 INFO L82 PathProgramCache]: Analyzing trace with hash 717072751, now seen corresponding path program 1 times [2020-10-23 18:33:02,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:02,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638895199] [2020-10-23 18:33:02,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:02,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:33:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:02,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:33:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:02,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:33:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:02,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-23 18:33:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 71 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-23 18:33:02,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638895199] [2020-10-23 18:33:02,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855804155] [2020-10-23 18:33:02,441 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 18:33:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:02,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:33:02,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:33:02,714 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 18:33:02,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:33:02,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2020-10-23 18:33:02,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681435445] [2020-10-23 18:33:02,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 18:33:02,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:33:02,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 18:33:02,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:33:02,717 INFO L87 Difference]: Start difference. First operand 4109 states and 4783 transitions. Second operand 12 states. [2020-10-23 18:33:03,145 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-10-23 18:33:03,390 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-23 18:33:03,817 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-10-23 18:33:04,050 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-10-23 18:33:04,915 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-10-23 18:33:05,367 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-23 18:33:05,628 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:33:06,226 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-23 18:33:08,284 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-23 18:33:10,285 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-23 18:33:11,034 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-23 18:33:11,214 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-23 18:33:15,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:15,897 INFO L93 Difference]: Finished difference Result 13072 states and 15672 transitions. [2020-10-23 18:33:15,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-23 18:33:15,898 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 168 [2020-10-23 18:33:15,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:15,946 INFO L225 Difference]: With dead ends: 13072 [2020-10-23 18:33:15,946 INFO L226 Difference]: Without dead ends: 7933 [2020-10-23 18:33:15,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=472, Invalid=2180, Unknown=0, NotChecked=0, Total=2652 [2020-10-23 18:33:15,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2020-10-23 18:33:16,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 6443. [2020-10-23 18:33:16,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6443 states. [2020-10-23 18:33:16,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6443 states to 6443 states and 7469 transitions. [2020-10-23 18:33:16,199 INFO L78 Accepts]: Start accepts. Automaton has 6443 states and 7469 transitions. Word has length 168 [2020-10-23 18:33:16,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:16,199 INFO L481 AbstractCegarLoop]: Abstraction has 6443 states and 7469 transitions. [2020-10-23 18:33:16,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 18:33:16,200 INFO L276 IsEmpty]: Start isEmpty. Operand 6443 states and 7469 transitions. [2020-10-23 18:33:16,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-23 18:33:16,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:16,220 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:16,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:16,434 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:16,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:16,435 INFO L82 PathProgramCache]: Analyzing trace with hash 772891851, now seen corresponding path program 1 times [2020-10-23 18:33:16,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:16,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221437634] [2020-10-23 18:33:16,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:16,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:33:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:16,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:33:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:16,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:33:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:16,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-23 18:33:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 119 proven. 38 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-23 18:33:16,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221437634] [2020-10-23 18:33:16,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567050206] [2020-10-23 18:33:16,896 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 18:33:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:17,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:33:17,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:33:17,244 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 102 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-23 18:33:17,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:33:17,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-10-23 18:33:17,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755175162] [2020-10-23 18:33:17,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:33:17,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:33:17,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:33:17,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:33:17,250 INFO L87 Difference]: Start difference. First operand 6443 states and 7469 transitions. Second operand 11 states. [2020-10-23 18:33:17,711 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-23 18:33:18,492 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-23 18:33:21,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:21,087 INFO L93 Difference]: Finished difference Result 12386 states and 14702 transitions. [2020-10-23 18:33:21,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-23 18:33:21,088 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 232 [2020-10-23 18:33:21,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:21,120 INFO L225 Difference]: With dead ends: 12386 [2020-10-23 18:33:21,120 INFO L226 Difference]: Without dead ends: 5949 [2020-10-23 18:33:21,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=217, Invalid=595, Unknown=0, NotChecked=0, Total=812 [2020-10-23 18:33:21,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5949 states. [2020-10-23 18:33:21,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5949 to 5397. [2020-10-23 18:33:21,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5397 states. [2020-10-23 18:33:21,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5397 states to 5397 states and 5948 transitions. [2020-10-23 18:33:21,311 INFO L78 Accepts]: Start accepts. Automaton has 5397 states and 5948 transitions. Word has length 232 [2020-10-23 18:33:21,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:21,312 INFO L481 AbstractCegarLoop]: Abstraction has 5397 states and 5948 transitions. [2020-10-23 18:33:21,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:33:21,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5397 states and 5948 transitions. [2020-10-23 18:33:21,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-23 18:33:21,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:21,330 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:21,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:21,544 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:21,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:21,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1393852394, now seen corresponding path program 1 times [2020-10-23 18:33:21,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:21,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13932538] [2020-10-23 18:33:21,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:21,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:33:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:21,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:33:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:21,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-23 18:33:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:21,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-23 18:33:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:22,025 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 245 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-23 18:33:22,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13932538] [2020-10-23 18:33:22,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574131793] [2020-10-23 18:33:22,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:22,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:33:22,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:33:22,380 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-10-23 18:33:22,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:33:22,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-10-23 18:33:22,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958762871] [2020-10-23 18:33:22,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:33:22,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:33:22,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:33:22,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:33:22,384 INFO L87 Difference]: Start difference. First operand 5397 states and 5948 transitions. Second operand 3 states. [2020-10-23 18:33:23,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:23,110 INFO L93 Difference]: Finished difference Result 10481 states and 11571 transitions. [2020-10-23 18:33:23,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:33:23,111 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2020-10-23 18:33:23,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:23,113 INFO L225 Difference]: With dead ends: 10481 [2020-10-23 18:33:23,114 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:33:23,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:33:23,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:33:23,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:33:23,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:33:23,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:33:23,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 276 [2020-10-23 18:33:23,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:23,136 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:33:23,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:33:23,136 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:33:23,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:33:23,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:23,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:33:24,196 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 149 [2020-10-23 18:33:24,383 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 149 [2020-10-23 18:33:24,643 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 32 [2020-10-23 18:33:26,531 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 237 DAG size of output: 67 [2020-10-23 18:33:27,054 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 54 [2020-10-23 18:33:27,512 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 54 [2020-10-23 18:33:27,993 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 51 [2020-10-23 18:33:27,998 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:33:27,999 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:33:27,999 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:33:27,999 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:33:27,999 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:33:28,000 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 18:33:28,000 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:33:28,000 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-23 18:33:28,001 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-23 18:33:28,001 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-23 18:33:28,001 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-23 18:33:28,001 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-23 18:33:28,001 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-23 18:33:28,001 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-23 18:33:28,001 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-23 18:33:28,001 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-23 18:33:28,001 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-23 18:33:28,002 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-23 18:33:28,002 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-23 18:33:28,002 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-23 18:33:28,002 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-23 18:33:28,002 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-23 18:33:28,002 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,002 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,002 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,002 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,002 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,002 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-23 18:33:28,003 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-23 18:33:28,003 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-23 18:33:28,003 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-23 18:33:28,003 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-23 18:33:28,003 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-23 18:33:28,003 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-23 18:33:28,003 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-23 18:33:28,003 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-23 18:33:28,004 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-23 18:33:28,004 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-23 18:33:28,004 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-23 18:33:28,004 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-23 18:33:28,004 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,004 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,004 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,004 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,004 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-23 18:33:28,005 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,005 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-23 18:33:28,005 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-23 18:33:28,005 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-23 18:33:28,005 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-23 18:33:28,005 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-23 18:33:28,005 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-23 18:33:28,005 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-23 18:33:28,005 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-23 18:33:28,005 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-23 18:33:28,006 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-23 18:33:28,006 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-23 18:33:28,006 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-23 18:33:28,006 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-23 18:33:28,006 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-23 18:33:28,006 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-23 18:33:28,006 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,006 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,007 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,007 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,007 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,007 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-23 18:33:28,007 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-23 18:33:28,007 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-23 18:33:28,007 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-23 18:33:28,007 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-23 18:33:28,007 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-23 18:33:28,008 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-23 18:33:28,008 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-23 18:33:28,008 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-23 18:33:28,008 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-23 18:33:28,008 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-23 18:33:28,008 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,008 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,008 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,008 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,008 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,009 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-23 18:33:28,009 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-23 18:33:28,009 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-23 18:33:28,009 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-23 18:33:28,009 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-23 18:33:28,009 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-23 18:33:28,009 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-23 18:33:28,009 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-23 18:33:28,009 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-23 18:33:28,009 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-23 18:33:28,010 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-23 18:33:28,010 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-23 18:33:28,010 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-23 18:33:28,010 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,010 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,010 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,010 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,010 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,010 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-23 18:33:28,010 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-23 18:33:28,011 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-23 18:33:28,011 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-23 18:33:28,011 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-23 18:33:28,011 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-23 18:33:28,011 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-23 18:33:28,011 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-23 18:33:28,011 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-23 18:33:28,011 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,011 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,011 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-23 18:33:28,012 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-23 18:33:28,012 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-23 18:33:28,012 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-23 18:33:28,012 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-23 18:33:28,012 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-23 18:33:28,012 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-23 18:33:28,012 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,012 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,013 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,013 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,013 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-23 18:33:28,013 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,013 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-23 18:33:28,013 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,013 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-23 18:33:28,013 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-23 18:33:28,013 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-23 18:33:28,013 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-23 18:33:28,014 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-23 18:33:28,014 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-23 18:33:28,014 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-23 18:33:28,014 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-23 18:33:28,014 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-23 18:33:28,014 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-23 18:33:28,014 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-23 18:33:28,014 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-23 18:33:28,014 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-23 18:33:28,015 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-23 18:33:28,015 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,015 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,015 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,015 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,015 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,015 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,015 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-23 18:33:28,015 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-23 18:33:28,016 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-23 18:33:28,016 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-23 18:33:28,016 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-23 18:33:28,016 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-23 18:33:28,016 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-23 18:33:28,016 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-23 18:33:28,016 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-23 18:33:28,016 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-23 18:33:28,016 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-23 18:33:28,016 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,016 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,016 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,016 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,017 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,017 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,017 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-23 18:33:28,017 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-23 18:33:28,017 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-23 18:33:28,017 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-23 18:33:28,017 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-23 18:33:28,017 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-23 18:33:28,017 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-23 18:33:28,018 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse14 (= ~a28~0 |old(~a28~0)|)) (.cse11 (= ~a17~0 |old(~a17~0)|)) (.cse15 (= ~a11~0 |old(~a11~0)|)) (.cse12 (= ~a25~0 |old(~a25~0)|)) (.cse13 (= ~a19~0 |old(~a19~0)|))) (let ((.cse0 (not (<= |old(~a28~0)| 7))) (.cse8 (= 11 |old(~a28~0)|)) (.cse9 (not (<= 10 |old(~a28~0)|))) (.cse6 (and .cse14 .cse11 .cse15 .cse12 .cse13)) (.cse10 (= |old(~a25~0)| 1)) (.cse4 (not (<= |old(~a17~0)| 8))) (.cse1 (not (= |old(~a19~0)| 1))) (.cse5 (not (<= 8 |old(~a17~0)|))) (.cse3 (and .cse14 .cse11 .cse15 (= ~a19~0 1) .cse12)) (.cse2 (not (<= |old(~a17~0)| 7))) (.cse7 (not (<= |old(~a19~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse6 .cse7) (or .cse4 .cse5 .cse6 .cse8 .cse9 .cse7) (or .cse1 (not (= 0 |old(~a11~0)|)) .cse2 .cse3) (or .cse6 .cse8 .cse2 (not (<= |old(~a25~0)| 0)) .cse7) (or .cse1 .cse10 .cse2 .cse9 .cse3) (or .cse4 .cse5 .cse6 .cse10 (not (<= |old(~a28~0)| 9)) .cse7) (or .cse4 .cse1 .cse5 .cse3) (or .cse2 (and (= ~a25~0 ~a11~0) .cse11 .cse12 (= ~a28~0 9) .cse13) (not (= 9 |old(~a28~0)|)) .cse7 (not (= |old(~a11~0)| |old(~a25~0)|)))))) [2020-10-23 18:33:28,018 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-23 18:33:28,018 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-23 18:33:28,018 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-23 18:33:28,018 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-23 18:33:28,018 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-23 18:33:28,019 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-23 18:33:28,019 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-23 18:33:28,019 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,019 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,019 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,019 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,019 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,019 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,019 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-23 18:33:28,019 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-23 18:33:28,020 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-23 18:33:28,020 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-23 18:33:28,020 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-23 18:33:28,020 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-23 18:33:28,020 INFO L270 CegarLoopResult]: At program point L492(line 492) the Hoare annotation is: (let ((.cse3 (not (<= |old(~a28~0)| 7))) (.cse0 (not (<= |old(~a17~0)| 7))) (.cse6 (= |old(~a25~0)| 1)) (.cse8 (= 11 |old(~a28~0)|)) (.cse7 (not (<= 10 |old(~a28~0)|))) (.cse1 (not (<= |old(~a19~0)| 0))) (.cse2 (not (<= |old(~a17~0)| 8))) (.cse5 (not (= |old(~a19~0)| 1))) (.cse4 (not (<= 8 |old(~a17~0)|)))) (and (or .cse0 (not (= 9 |old(~a28~0)|)) .cse1 (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse2 .cse3 .cse4 .cse1) (or .cse5 .cse6 .cse0 .cse7) (or .cse8 .cse0 (not (<= |old(~a25~0)| 0)) .cse1) (or .cse3 .cse5 .cse0) (or .cse5 (not (= 0 |old(~a11~0)|)) .cse0) (or .cse2 .cse4 .cse6 (not (<= |old(~a28~0)| 9)) .cse1) (or .cse2 .cse4 .cse8 .cse7 .cse1) (or .cse2 .cse5 .cse4))) [2020-10-23 18:33:28,020 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-23 18:33:28,020 INFO L274 CegarLoopResult]: For program point L492-1(line 492) no Hoare annotation was computed. [2020-10-23 18:33:28,020 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-23 18:33:28,021 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-23 18:33:28,021 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-23 18:33:28,021 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-23 18:33:28,021 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-23 18:33:28,021 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,021 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,021 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,021 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,021 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,022 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,022 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-23 18:33:28,022 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-23 18:33:28,022 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-23 18:33:28,022 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-23 18:33:28,022 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-23 18:33:28,022 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-23 18:33:28,022 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-23 18:33:28,022 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-23 18:33:28,022 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-23 18:33:28,023 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-23 18:33:28,023 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-23 18:33:28,023 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-23 18:33:28,023 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-23 18:33:28,023 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-23 18:33:28,023 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-23 18:33:28,023 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-23 18:33:28,023 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,023 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,023 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,024 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,024 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:28,024 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-23 18:33:28,024 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-23 18:33:28,024 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-23 18:33:28,024 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-23 18:33:28,024 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:33:28,024 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a28~0 ~a17~0)) (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a11~0 0) (<= ~a28~0 7) (<= ~a17~0 8)) [2020-10-23 18:33:28,024 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:33:28,025 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:33:28,025 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse5 (not (= ~a28~0 11))) (.cse0 (= ~a19~0 1)) (.cse7 (<= 10 ~a28~0)) (.cse6 (not (= ~a25~0 1))) (.cse3 (<= ~a19~0 0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse4 (<= 8 ~a17~0)) (.cse2 (<= ~a28~0 7))) (or (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2) (and .cse0 .cse1 (= ~a11~0 0)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (and .cse3 .cse1 .cse4 .cse5 .cse6) (and .cse3 .cse1 (<= ~a25~0 0) .cse5) (and .cse0 .cse1 .cse4) (not (= 0 |old(~a11~0)|)) (and .cse3 .cse7 .cse1 .cse4 .cse5) (and .cse0 .cse7 .cse1 .cse6) (= |old(~a17~0)| |old(~a28~0)|) (and (= ~a25~0 ~a11~0) .cse3 .cse1 (= ~a28~0 9) (<= ~a17~0 7)) (and .cse3 .cse1 .cse4 .cse2) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-23 18:33:28,025 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a11~0)|)) (and (= ~a28~0 |old(~a28~0)|) (= ~a25~0 ~a11~0) (= ~a17~0 |old(~a17~0)|) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|)) (= |old(~a17~0)| |old(~a28~0)|) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-23 18:33:28,025 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-23 18:33:28,025 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-23 18:33:28,025 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse5 (not (= ~a28~0 11))) (.cse0 (= ~a19~0 1)) (.cse7 (<= 10 ~a28~0)) (.cse6 (not (= ~a25~0 1))) (.cse3 (<= ~a19~0 0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse4 (<= 8 ~a17~0)) (.cse2 (<= ~a28~0 7))) (or (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2) (and .cse0 .cse1 (= ~a11~0 0)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (and .cse3 .cse1 .cse4 .cse5 .cse6) (and .cse3 .cse1 (<= ~a25~0 0) .cse5) (and .cse0 .cse1 .cse4) (not (= 0 |old(~a11~0)|)) (and .cse3 .cse7 .cse1 .cse4 .cse5) (and .cse0 .cse7 .cse1 .cse6) (= |old(~a17~0)| |old(~a28~0)|) (and (= ~a25~0 ~a11~0) .cse3 .cse1 (= ~a28~0 9) (<= ~a17~0 7)) (and .cse3 .cse1 .cse4 .cse2) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-23 18:33:28,026 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-23 18:33:28,026 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-23 18:33:28,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:33:28 BoogieIcfgContainer [2020-10-23 18:33:28,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:33:28,053 INFO L168 Benchmark]: Toolchain (without parser) took 46475.49 ms. Allocated memory was 152.0 MB in the beginning and 679.5 MB in the end (delta: 527.4 MB). Free memory was 126.7 MB in the beginning and 392.6 MB in the end (delta: -265.9 MB). Peak memory consumption was 416.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:28,053 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 126.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:33:28,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.46 ms. Allocated memory is still 152.0 MB. Free memory was 126.0 MB in the beginning and 131.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:28,055 INFO L168 Benchmark]: Boogie Preprocessor took 141.80 ms. Allocated memory is still 152.0 MB. Free memory was 131.2 MB in the beginning and 125.9 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:28,056 INFO L168 Benchmark]: RCFGBuilder took 1424.67 ms. Allocated memory is still 152.0 MB. Free memory was 125.9 MB in the beginning and 105.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 82.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:28,057 INFO L168 Benchmark]: TraceAbstraction took 44162.19 ms. Allocated memory was 152.0 MB in the beginning and 679.5 MB in the end (delta: 527.4 MB). Free memory was 104.5 MB in the beginning and 392.6 MB in the end (delta: -288.1 MB). Peak memory consumption was 393.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:28,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 126.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 723.46 ms. Allocated memory is still 152.0 MB. Free memory was 126.0 MB in the beginning and 131.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 141.80 ms. Allocated memory is still 152.0 MB. Free memory was 131.2 MB in the beginning and 125.9 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1424.67 ms. Allocated memory is still 152.0 MB. Free memory was 125.9 MB in the beginning and 105.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 82.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 44162.19 ms. Allocated memory was 152.0 MB in the beginning and 679.5 MB in the end (delta: 527.4 MB). Free memory was 104.5 MB in the beginning and 392.6 MB in the end (delta: -288.1 MB). Peak memory consumption was 393.5 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: (((((((((((((!(\old(a19) == 1) || ((a19 == 1 && a17 <= \old(a17)) && a28 <= 7)) || ((a19 == 1 && a17 <= \old(a17)) && a11 == 0)) || !(\old(a28) <= 7)) || !(\old(a17) <= 8)) || ((((a19 <= 0 && a17 <= \old(a17)) && 8 <= a17) && !(a28 == 11)) && !(a25 == 1))) || (((a19 <= 0 && a17 <= \old(a17)) && a25 <= 0) && !(a28 == 11))) || ((a19 == 1 && a17 <= \old(a17)) && 8 <= a17)) || !(0 == \old(a11))) || ((((a19 <= 0 && 10 <= a28) && a17 <= \old(a17)) && 8 <= a17) && !(a28 == 11))) || (((a19 == 1 && 10 <= a28) && a17 <= \old(a17)) && !(a25 == 1))) || \old(a17) == \old(a28)) || ((((a25 == a11 && a19 <= 0) && a17 <= \old(a17)) && a28 == 9) && a17 <= 7)) || (((a19 <= 0 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 7)) || !(\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: 39.3s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 31.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 762 SDtfs, 8480 SDslu, 760 SDs, 0 SdLazy, 13435 SolverSat, 2284 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1211 GetRequests, 1068 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1020 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6443occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 2428 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 439 PreInvPairs, 523 NumberOfFragments, 872 HoareAnnotationTreeSize, 439 FomulaSimplifications, 42744 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 8700 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2442 NumberOfCodeBlocks, 2442 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2428 ConstructedInterpolants, 0 QuantifiedInterpolants, 1223851 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2760 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 1241/1307 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...