/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_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:35:33,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:35:33,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:35:34,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:35:34,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:35:34,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:35:34,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:35:34,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:35:34,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:35:34,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:35:34,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:35:34,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2020-11-06 22:35:34,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:35:34,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:35:34,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:35:34,100 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 [2020-11-06 22:35:34,171 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:35:34,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:35:34,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:35:34,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:35:34,176 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:35:34,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:35:34,177 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:35:34,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:35:34,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:35:34,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:35:34,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:35:34,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:35:34,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:35:34,178 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:35:34,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:35:34,178 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:35:34,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:35:34,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:35:34,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:35:34,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:35:34,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:35:34,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:35:34,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:35:34,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:35:34,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:35:34,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:35:34,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:35:34,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:35:34,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:35:34,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:35:34,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:35:34,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:35:34,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:35:34,618 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:35:34,618 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:35:34,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2020-11-06 22:35:34,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a3e227c4/73204995fda541dbb4e3916feeeb5962/FLAG55818c661 [2020-11-06 22:35:35,426 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:35:35,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2020-11-06 22:35:35,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a3e227c4/73204995fda541dbb4e3916feeeb5962/FLAG55818c661 [2020-11-06 22:35:35,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a3e227c4/73204995fda541dbb4e3916feeeb5962 [2020-11-06 22:35:35,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:35:35,714 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:35:35,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:35:35,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:35:35,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:35:35,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:35:35" (1/1) ... [2020-11-06 22:35:35,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aba8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:35, skipping insertion in model container [2020-11-06 22:35:35,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:35:35" (1/1) ... [2020-11-06 22:35:35,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:35:35,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:35:36,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:35:36,313 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:35:36,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:35:36,517 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:35:36,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:36 WrapperNode [2020-11-06 22:35:36,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:35:36,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:35:36,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:35:36,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:35:36,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:36" (1/1) ... [2020-11-06 22:35:36,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:36" (1/1) ... [2020-11-06 22:35:36,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:36" (1/1) ... [2020-11-06 22:35:36,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:36" (1/1) ... [2020-11-06 22:35:36,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:36" (1/1) ... [2020-11-06 22:35:36,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:36" (1/1) ... [2020-11-06 22:35:36,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:36" (1/1) ... [2020-11-06 22:35:36,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:35:36,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:35:36,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:35:36,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:35:36,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:36" (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 [2020-11-06 22:35:36,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:35:36,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:35:36,768 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:35:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-06 22:35:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:35:36,770 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-06 22:35:36,770 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:35:36,770 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:35:36,770 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:35:36,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:35:36,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:35:36,771 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-06 22:35:36,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:35:36,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:35:36,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:35:36,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:35:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:35:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:35:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:35:38,188 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:35:38,188 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-06 22:35:38,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:35:38 BoogieIcfgContainer [2020-11-06 22:35:38,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:35:38,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:35:38,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:35:38,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:35:38,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:35:35" (1/3) ... [2020-11-06 22:35:38,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732e0000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:35:38, skipping insertion in model container [2020-11-06 22:35:38,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:36" (2/3) ... [2020-11-06 22:35:38,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732e0000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:35:38, skipping insertion in model container [2020-11-06 22:35:38,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:35:38" (3/3) ... [2020-11-06 22:35:38,207 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label05.c [2020-11-06 22:35:38,223 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:35:38,227 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:35:38,240 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:35:38,294 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:35:38,295 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:35:38,295 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:35:38,295 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:35:38,295 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:35:38,295 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:35:38,296 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:35:38,296 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:35:38,335 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-11-06 22:35:38,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-11-06 22:35:38,362 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:35:38,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:35:38,364 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:35:38,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:35:38,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1557066117, now seen corresponding path program 1 times [2020-11-06 22:35:38,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:35:38,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126268540] [2020-11-06 22:35:38,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:35:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:39,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:35:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:39,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:35:39,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126268540] [2020-11-06 22:35:39,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:35:39,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 22:35:39,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214043301] [2020-11-06 22:35:39,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 22:35:39,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:35:39,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 22:35:39,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 22:35:39,178 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-11-06 22:35:41,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:35:41,212 INFO L93 Difference]: Finished difference Result 667 states and 1119 transitions. [2020-11-06 22:35:41,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 22:35:41,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 133 [2020-11-06 22:35:41,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:35:41,233 INFO L225 Difference]: With dead ends: 667 [2020-11-06 22:35:41,233 INFO L226 Difference]: Without dead ends: 342 [2020-11-06 22:35:41,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:35:41,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-11-06 22:35:41,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 338. [2020-11-06 22:35:41,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-06 22:35:41,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 489 transitions. [2020-11-06 22:35:41,324 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 489 transitions. Word has length 133 [2020-11-06 22:35:41,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:35:41,326 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 489 transitions. [2020-11-06 22:35:41,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 22:35:41,326 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 489 transitions. [2020-11-06 22:35:41,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-11-06 22:35:41,332 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:35:41,332 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:35:41,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:35:41,333 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:35:41,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:35:41,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1559091247, now seen corresponding path program 1 times [2020-11-06 22:35:41,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:35:41,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686442376] [2020-11-06 22:35:41,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:35:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:41,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:35:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:41,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:35:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:35:41,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686442376] [2020-11-06 22:35:41,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:35:41,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 22:35:41,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300301160] [2020-11-06 22:35:41,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 22:35:41,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:35:41,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 22:35:41,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:35:41,707 INFO L87 Difference]: Start difference. First operand 338 states and 489 transitions. Second operand 7 states. [2020-11-06 22:35:41,865 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-11-06 22:35:42,367 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-06 22:35:43,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:35:43,896 INFO L93 Difference]: Finished difference Result 991 states and 1464 transitions. [2020-11-06 22:35:43,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-06 22:35:43,902 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2020-11-06 22:35:43,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:35:43,919 INFO L225 Difference]: With dead ends: 991 [2020-11-06 22:35:43,919 INFO L226 Difference]: Without dead ends: 659 [2020-11-06 22:35:43,922 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 [2020-11-06 22:35:43,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2020-11-06 22:35:43,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 643. [2020-11-06 22:35:43,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-11-06 22:35:43,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 883 transitions. [2020-11-06 22:35:43,995 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 883 transitions. Word has length 141 [2020-11-06 22:35:43,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:35:43,996 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 883 transitions. [2020-11-06 22:35:43,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 22:35:43,996 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 883 transitions. [2020-11-06 22:35:44,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-11-06 22:35:44,009 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:35:44,011 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:35:44,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:35:44,012 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:35:44,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:35:44,013 INFO L82 PathProgramCache]: Analyzing trace with hash -143136342, now seen corresponding path program 1 times [2020-11-06 22:35:44,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:35:44,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312783179] [2020-11-06 22:35:44,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:35:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:44,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:35:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:44,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:35:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:35:44,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312783179] [2020-11-06 22:35:44,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:35:44,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 22:35:44,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498319256] [2020-11-06 22:35:44,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 22:35:44,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:35:44,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 22:35:44,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:35:44,419 INFO L87 Difference]: Start difference. First operand 643 states and 883 transitions. Second operand 7 states. [2020-11-06 22:35:46,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:35:46,591 INFO L93 Difference]: Finished difference Result 1925 states and 2786 transitions. [2020-11-06 22:35:46,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:35:46,592 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-11-06 22:35:46,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:35:46,607 INFO L225 Difference]: With dead ends: 1925 [2020-11-06 22:35:46,607 INFO L226 Difference]: Without dead ends: 1288 [2020-11-06 22:35:46,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:35:46,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2020-11-06 22:35:46,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1256. [2020-11-06 22:35:46,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2020-11-06 22:35:46,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1691 transitions. [2020-11-06 22:35:46,717 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1691 transitions. Word has length 144 [2020-11-06 22:35:46,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:35:46,717 INFO L481 AbstractCegarLoop]: Abstraction has 1256 states and 1691 transitions. [2020-11-06 22:35:46,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 22:35:46,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1691 transitions. [2020-11-06 22:35:46,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-11-06 22:35:46,724 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:35:46,724 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:35:46,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 22:35:46,725 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:35:46,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:35:46,726 INFO L82 PathProgramCache]: Analyzing trace with hash -944091803, now seen corresponding path program 1 times [2020-11-06 22:35:46,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:35:46,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431275649] [2020-11-06 22:35:46,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:35:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:46,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:35:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:46,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:35:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:46,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-06 22:35:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:46,978 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-06 22:35:46,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431275649] [2020-11-06 22:35:46,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745946398] [2020-11-06 22:35:46,980 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 [2020-11-06 22:35:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:47,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-06 22:35:47,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:35:47,519 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-06 22:35:47,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:35:47,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-11-06 22:35:47,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864203216] [2020-11-06 22:35:47,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:35:47,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:35:47,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:35:47,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:35:47,524 INFO L87 Difference]: Start difference. First operand 1256 states and 1691 transitions. Second operand 5 states. [2020-11-06 22:35:48,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:35:48,778 INFO L93 Difference]: Finished difference Result 3746 states and 5150 transitions. [2020-11-06 22:35:48,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-06 22:35:48,779 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2020-11-06 22:35:48,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:35:48,797 INFO L225 Difference]: With dead ends: 3746 [2020-11-06 22:35:48,797 INFO L226 Difference]: Without dead ends: 2496 [2020-11-06 22:35:48,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:35:48,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-11-06 22:35:48,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2456. [2020-11-06 22:35:48,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2456 states. [2020-11-06 22:35:48,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 3039 transitions. [2020-11-06 22:35:48,939 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 3039 transitions. Word has length 153 [2020-11-06 22:35:48,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:35:48,939 INFO L481 AbstractCegarLoop]: Abstraction has 2456 states and 3039 transitions. [2020-11-06 22:35:48,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:35:48,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 3039 transitions. [2020-11-06 22:35:48,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-11-06 22:35:48,948 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:35:48,948 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:35:49,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:35:49,163 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:35:49,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:35:49,164 INFO L82 PathProgramCache]: Analyzing trace with hash 208274394, now seen corresponding path program 1 times [2020-11-06 22:35:49,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:35:49,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135706864] [2020-11-06 22:35:49,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:35:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:49,396 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-06 22:35:49,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:35:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:49,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:35:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:49,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:35:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 22:35:49,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135706864] [2020-11-06 22:35:49,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327139045] [2020-11-06 22:35:49,497 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 [2020-11-06 22:35:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:49,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:35:49,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:35:49,698 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-06 22:35:49,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:35:49,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-11-06 22:35:49,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7136671] [2020-11-06 22:35:49,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:35:49,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:35:49,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:35:49,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:35:49,701 INFO L87 Difference]: Start difference. First operand 2456 states and 3039 transitions. Second operand 3 states. [2020-11-06 22:35:50,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:35:50,566 INFO L93 Difference]: Finished difference Result 5932 states and 7628 transitions. [2020-11-06 22:35:50,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:35:50,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-11-06 22:35:50,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:35:50,588 INFO L225 Difference]: With dead ends: 5932 [2020-11-06 22:35:50,589 INFO L226 Difference]: Without dead ends: 3482 [2020-11-06 22:35:50,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:35:50,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2020-11-06 22:35:50,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3478. [2020-11-06 22:35:50,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3478 states. [2020-11-06 22:35:50,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 4372 transitions. [2020-11-06 22:35:50,749 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 4372 transitions. Word has length 154 [2020-11-06 22:35:50,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:35:50,752 INFO L481 AbstractCegarLoop]: Abstraction has 3478 states and 4372 transitions. [2020-11-06 22:35:50,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:35:50,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 4372 transitions. [2020-11-06 22:35:50,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-11-06 22:35:50,766 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:35:50,766 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:35:50,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:35:50,981 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:35:50,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:35:50,982 INFO L82 PathProgramCache]: Analyzing trace with hash -644496879, now seen corresponding path program 1 times [2020-11-06 22:35:50,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:35:50,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393482714] [2020-11-06 22:35:50,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:35:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:51,194 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-06 22:35:51,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:35:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:51,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:35:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:51,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:35:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:51,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-06 22:35:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:51,321 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 34 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-06 22:35:51,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393482714] [2020-11-06 22:35:51,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7390813] [2020-11-06 22:35:51,322 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 [2020-11-06 22:35:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:51,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:35:51,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:35:51,605 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-06 22:35:51,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:35:51,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-11-06 22:35:51,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552071769] [2020-11-06 22:35:51,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-06 22:35:51,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:35:51,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-06 22:35:51,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:35:51,610 INFO L87 Difference]: Start difference. First operand 3478 states and 4372 transitions. Second operand 12 states. [2020-11-06 22:35:51,817 WARN L194 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-11-06 22:35:53,151 WARN L194 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-11-06 22:35:56,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:35:56,932 INFO L93 Difference]: Finished difference Result 8053 states and 10252 transitions. [2020-11-06 22:35:56,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-11-06 22:35:56,938 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 163 [2020-11-06 22:35:56,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:35:56,962 INFO L225 Difference]: With dead ends: 8053 [2020-11-06 22:35:56,963 INFO L226 Difference]: Without dead ends: 4581 [2020-11-06 22:35:56,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=195, Invalid=675, Unknown=0, NotChecked=0, Total=870 [2020-11-06 22:35:56,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2020-11-06 22:35:57,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 4105. [2020-11-06 22:35:57,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4105 states. [2020-11-06 22:35:57,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4105 states to 4105 states and 4666 transitions. [2020-11-06 22:35:57,118 INFO L78 Accepts]: Start accepts. Automaton has 4105 states and 4666 transitions. Word has length 163 [2020-11-06 22:35:57,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:35:57,118 INFO L481 AbstractCegarLoop]: Abstraction has 4105 states and 4666 transitions. [2020-11-06 22:35:57,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-06 22:35:57,119 INFO L276 IsEmpty]: Start isEmpty. Operand 4105 states and 4666 transitions. [2020-11-06 22:35:57,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-11-06 22:35:57,129 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:35:57,129 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:35:57,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:35:57,345 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:35:57,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:35:57,346 INFO L82 PathProgramCache]: Analyzing trace with hash 689875421, now seen corresponding path program 1 times [2020-11-06 22:35:57,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:35:57,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424149640] [2020-11-06 22:35:57,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:35:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:57,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:35:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:57,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:35:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:57,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:35:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-06 22:35:57,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424149640] [2020-11-06 22:35:57,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203847206] [2020-11-06 22:35:57,856 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 [2020-11-06 22:35:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:57,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:35:57,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:35:58,052 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-06 22:35:58,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:35:58,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-11-06 22:35:58,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668882102] [2020-11-06 22:35:58,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:35:58,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:35:58,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:35:58,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:35:58,054 INFO L87 Difference]: Start difference. First operand 4105 states and 4666 transitions. Second operand 3 states. [2020-11-06 22:35:58,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:35:58,726 INFO L93 Difference]: Finished difference Result 8204 states and 9326 transitions. [2020-11-06 22:35:58,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:35:58,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2020-11-06 22:35:58,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:35:58,746 INFO L225 Difference]: With dead ends: 8204 [2020-11-06 22:35:58,747 INFO L226 Difference]: Without dead ends: 4105 [2020-11-06 22:35:58,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:35:58,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4105 states. [2020-11-06 22:35:58,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4105 to 3817. [2020-11-06 22:35:58,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3817 states. [2020-11-06 22:35:58,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3817 states to 3817 states and 4133 transitions. [2020-11-06 22:35:58,864 INFO L78 Accepts]: Start accepts. Automaton has 3817 states and 4133 transitions. Word has length 168 [2020-11-06 22:35:58,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:35:58,865 INFO L481 AbstractCegarLoop]: Abstraction has 3817 states and 4133 transitions. [2020-11-06 22:35:58,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:35:58,865 INFO L276 IsEmpty]: Start isEmpty. Operand 3817 states and 4133 transitions. [2020-11-06 22:35:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-11-06 22:35:58,874 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:35:58,874 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:35:59,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:35:59,087 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:35:59,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:35:59,088 INFO L82 PathProgramCache]: Analyzing trace with hash 2110840843, now seen corresponding path program 1 times [2020-11-06 22:35:59,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:35:59,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520196811] [2020-11-06 22:35:59,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:35:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:59,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:35:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:59,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:35:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:59,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-11-06 22:35:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:59,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-11-06 22:35:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:59,343 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 54 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-06 22:35:59,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520196811] [2020-11-06 22:35:59,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619675645] [2020-11-06 22:35:59,344 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 [2020-11-06 22:35:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:35:59,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:35:59,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:35:59,573 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-06 22:35:59,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:35:59,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-11-06 22:35:59,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187446510] [2020-11-06 22:35:59,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:35:59,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:35:59,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:35:59,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:35:59,576 INFO L87 Difference]: Start difference. First operand 3817 states and 4133 transitions. Second operand 10 states. [2020-11-06 22:36:01,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:36:01,497 INFO L93 Difference]: Finished difference Result 7962 states and 8648 transitions. [2020-11-06 22:36:01,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:36:01,498 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 186 [2020-11-06 22:36:01,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:36:01,516 INFO L225 Difference]: With dead ends: 7962 [2020-11-06 22:36:01,517 INFO L226 Difference]: Without dead ends: 3847 [2020-11-06 22:36:01,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:36:01,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3847 states. [2020-11-06 22:36:01,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3847 to 3675. [2020-11-06 22:36:01,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3675 states. [2020-11-06 22:36:01,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3675 states to 3675 states and 3943 transitions. [2020-11-06 22:36:01,622 INFO L78 Accepts]: Start accepts. Automaton has 3675 states and 3943 transitions. Word has length 186 [2020-11-06 22:36:01,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:36:01,623 INFO L481 AbstractCegarLoop]: Abstraction has 3675 states and 3943 transitions. [2020-11-06 22:36:01,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:36:01,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3675 states and 3943 transitions. [2020-11-06 22:36:01,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-11-06 22:36:01,632 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:36:01,633 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:36:01,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:36:01,848 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:36:01,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:36:01,849 INFO L82 PathProgramCache]: Analyzing trace with hash 233125331, now seen corresponding path program 1 times [2020-11-06 22:36:01,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:36:01,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263044947] [2020-11-06 22:36:01,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:36:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:36:01,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:36:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:36:02,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:36:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:36:02,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:36:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:36:02,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-11-06 22:36:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:36:02,095 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 62 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-06 22:36:02,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263044947] [2020-11-06 22:36:02,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7818445] [2020-11-06 22:36:02,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:36:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:36:02,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:36:02,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:36:02,327 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 67 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-06 22:36:02,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:36:02,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-11-06 22:36:02,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996771820] [2020-11-06 22:36:02,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:36:02,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:36:02,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:36:02,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:36:02,329 INFO L87 Difference]: Start difference. First operand 3675 states and 3943 transitions. Second operand 10 states. [2020-11-06 22:36:02,760 WARN L194 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-11-06 22:36:03,195 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-06 22:36:03,764 WARN L194 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-11-06 22:36:04,666 WARN L194 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-11-06 22:36:05,509 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-06 22:36:08,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:36:08,206 INFO L93 Difference]: Finished difference Result 8809 states and 9487 transitions. [2020-11-06 22:36:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 22:36:08,206 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2020-11-06 22:36:08,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:36:08,224 INFO L225 Difference]: With dead ends: 8809 [2020-11-06 22:36:08,224 INFO L226 Difference]: Without dead ends: 3610 [2020-11-06 22:36:08,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2020-11-06 22:36:08,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2020-11-06 22:36:08,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3161. [2020-11-06 22:36:08,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3161 states. [2020-11-06 22:36:08,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3161 states to 3161 states and 3282 transitions. [2020-11-06 22:36:08,324 INFO L78 Accepts]: Start accepts. Automaton has 3161 states and 3282 transitions. Word has length 190 [2020-11-06 22:36:08,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:36:08,324 INFO L481 AbstractCegarLoop]: Abstraction has 3161 states and 3282 transitions. [2020-11-06 22:36:08,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:36:08,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3161 states and 3282 transitions. [2020-11-06 22:36:08,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-11-06 22:36:08,336 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:36:08,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:36:08,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:36:08,545 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:36:08,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:36:08,546 INFO L82 PathProgramCache]: Analyzing trace with hash -970703430, now seen corresponding path program 1 times [2020-11-06 22:36:08,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:36:08,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59611999] [2020-11-06 22:36:08,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:36:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:36:08,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:36:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:36:08,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:36:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:36:08,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-11-06 22:36:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:36:08,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-11-06 22:36:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:36:09,073 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 245 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-11-06 22:36:09,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59611999] [2020-11-06 22:36:09,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591509515] [2020-11-06 22:36:09,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:36:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:36:09,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:36:09,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:36:09,336 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-11-06 22:36:09,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:36:09,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-11-06 22:36:09,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645366649] [2020-11-06 22:36:09,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:36:09,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:36:09,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:36:09,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:36:09,339 INFO L87 Difference]: Start difference. First operand 3161 states and 3282 transitions. Second operand 3 states. [2020-11-06 22:36:09,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:36:09,946 INFO L93 Difference]: Finished difference Result 6024 states and 6257 transitions. [2020-11-06 22:36:09,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:36:09,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 296 [2020-11-06 22:36:09,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:36:09,949 INFO L225 Difference]: With dead ends: 6024 [2020-11-06 22:36:09,949 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 22:36:09,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:36:09,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 22:36:09,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 22:36:09,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 22:36:09,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 22:36:09,960 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 296 [2020-11-06 22:36:09,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:36:09,960 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 22:36:09,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:36:09,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 22:36:09,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 22:36:10,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-06 22:36:10,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 22:36:11,176 WARN L194 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 159 [2020-11-06 22:36:11,345 WARN L194 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 159 [2020-11-06 22:36:11,980 WARN L194 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 56 [2020-11-06 22:36:12,132 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 29 [2020-11-06 22:36:15,470 WARN L194 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 220 DAG size of output: 89 [2020-11-06 22:36:15,655 WARN L194 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-11-06 22:36:17,288 WARN L194 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 137 DAG size of output: 69 [2020-11-06 22:36:18,933 WARN L194 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 137 DAG size of output: 69 [2020-11-06 22:36:18,938 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-11-06 22:36:18,938 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-06 22:36:18,938 INFO L266 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-11-06 22:36:18,938 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-06 22:36:18,938 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:36:18,939 INFO L262 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|) (= |old(#NULL.base)| |#NULL.base|) (= |#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)|) (= ~y~0 |old(~y~0)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |old(#t~string7.base)| |#t~string7.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-11-06 22:36:18,939 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:36:18,939 INFO L266 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-11-06 22:36:18,939 INFO L266 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-06 22:36:18,939 INFO L266 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-06 22:36:18,939 INFO L266 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-06 22:36:18,939 INFO L266 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-06 22:36:18,939 INFO L266 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-06 22:36:18,939 INFO L266 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-11-06 22:36:18,939 INFO L266 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-11-06 22:36:18,939 INFO L266 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-11-06 22:36:18,939 INFO L266 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-11-06 22:36:18,940 INFO L266 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-11-06 22:36:18,940 INFO L266 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-11-06 22:36:18,940 INFO L266 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-11-06 22:36:18,940 INFO L266 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-11-06 22:36:18,940 INFO L266 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-11-06 22:36:18,940 INFO L266 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,941 INFO L266 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,941 INFO L266 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,941 INFO L266 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,941 INFO L266 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,941 INFO L266 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-11-06 22:36:18,942 INFO L266 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-11-06 22:36:18,942 INFO L266 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-06 22:36:18,942 INFO L266 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-06 22:36:18,942 INFO L266 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-06 22:36:18,942 INFO L266 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-06 22:36:18,942 INFO L266 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-06 22:36:18,942 INFO L266 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-11-06 22:36:18,942 INFO L266 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-11-06 22:36:18,942 INFO L266 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-11-06 22:36:18,943 INFO L266 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-11-06 22:36:18,943 INFO L266 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-11-06 22:36:18,943 INFO L266 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-11-06 22:36:18,943 INFO L266 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,943 INFO L266 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,943 INFO L266 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,943 INFO L266 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,943 INFO L266 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-11-06 22:36:18,943 INFO L266 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,943 INFO L266 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-11-06 22:36:18,944 INFO L266 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-06 22:36:18,944 INFO L266 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-06 22:36:18,944 INFO L266 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-06 22:36:18,944 INFO L266 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-06 22:36:18,944 INFO L266 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-06 22:36:18,944 INFO L266 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-11-06 22:36:18,944 INFO L266 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-11-06 22:36:18,944 INFO L266 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-11-06 22:36:18,944 INFO L266 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-11-06 22:36:18,944 INFO L266 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-11-06 22:36:18,944 INFO L266 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-11-06 22:36:18,945 INFO L266 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-11-06 22:36:18,945 INFO L266 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-11-06 22:36:18,945 INFO L266 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-11-06 22:36:18,945 INFO L266 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,945 INFO L266 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,945 INFO L266 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,945 INFO L266 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,945 INFO L266 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,945 INFO L266 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-11-06 22:36:18,946 INFO L266 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-11-06 22:36:18,946 INFO L266 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-11-06 22:36:18,946 INFO L266 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-06 22:36:18,946 INFO L266 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-06 22:36:18,946 INFO L266 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-06 22:36:18,946 INFO L266 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-06 22:36:18,946 INFO L266 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-06 22:36:18,946 INFO L266 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-11-06 22:36:18,946 INFO L266 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-11-06 22:36:18,946 INFO L266 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-11-06 22:36:18,947 INFO L266 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,947 INFO L266 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,947 INFO L266 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,947 INFO L266 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,947 INFO L266 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,947 INFO L266 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-11-06 22:36:18,947 INFO L266 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-11-06 22:36:18,947 INFO L266 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-11-06 22:36:18,947 INFO L266 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-06 22:36:18,948 INFO L266 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-06 22:36:18,948 INFO L266 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-06 22:36:18,948 INFO L266 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-06 22:36:18,948 INFO L266 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-06 22:36:18,948 INFO L266 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-11-06 22:36:18,948 INFO L266 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-11-06 22:36:18,948 INFO L266 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-11-06 22:36:18,948 INFO L266 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-11-06 22:36:18,948 INFO L266 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-11-06 22:36:18,948 INFO L266 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,948 INFO L266 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,949 INFO L266 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,949 INFO L266 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,949 INFO L266 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,949 INFO L266 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-11-06 22:36:18,949 INFO L266 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-06 22:36:18,949 INFO L266 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-06 22:36:18,949 INFO L266 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-06 22:36:18,949 INFO L266 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-06 22:36:18,949 INFO L266 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-06 22:36:18,949 INFO L266 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-11-06 22:36:18,950 INFO L266 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-11-06 22:36:18,950 INFO L266 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-11-06 22:36:18,950 INFO L266 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,950 INFO L266 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,950 INFO L266 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-11-06 22:36:18,950 INFO L266 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-11-06 22:36:18,950 INFO L266 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-11-06 22:36:18,950 INFO L266 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-11-06 22:36:18,950 INFO L266 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-11-06 22:36:18,950 INFO L266 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-11-06 22:36:18,951 INFO L266 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-11-06 22:36:18,951 INFO L266 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,951 INFO L266 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,951 INFO L266 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,951 INFO L266 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,951 INFO L266 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-11-06 22:36:18,951 INFO L266 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,951 INFO L266 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-11-06 22:36:18,951 INFO L266 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,951 INFO L266 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-11-06 22:36:18,952 INFO L266 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-11-06 22:36:18,952 INFO L266 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-11-06 22:36:18,952 INFO L266 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-06 22:36:18,952 INFO L266 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-06 22:36:18,952 INFO L266 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-06 22:36:18,952 INFO L266 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-06 22:36:18,952 INFO L266 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-06 22:36:18,952 INFO L266 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-06 22:36:18,952 INFO L266 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-11-06 22:36:18,952 INFO L266 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-11-06 22:36:18,952 INFO L266 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-11-06 22:36:18,952 INFO L266 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-11-06 22:36:18,953 INFO L266 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-11-06 22:36:18,953 INFO L266 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,953 INFO L266 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,953 INFO L266 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,953 INFO L266 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,953 INFO L266 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,953 INFO L266 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,953 INFO L266 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-11-06 22:36:18,953 INFO L266 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-11-06 22:36:18,954 INFO L262 CegarLoopResult]: At program point L552(line 552) the Hoare annotation is: (let ((.cse13 (not (<= |old(~a28~0)| 7))) (.cse3 (= |old(~a17~0)| |old(~a28~0)|)) (.cse10 (not (<= |old(~a17~0)| 7))) (.cse0 (not (<= 8 |old(~a17~0)|))) (.cse12 (not (<= |old(~a25~0)| 0))) (.cse5 (not (<= |old(~a28~0)| 10))) (.cse9 (not (= |old(~a25~0)| 1))) (.cse6 (not (= |old(~a19~0)| 1))) (.cse7 (= 9 |old(~a28~0)|)) (.cse1 (not (= 0 |old(~a11~0)|))) (.cse11 (not (<= |old(~a28~0)| 9))) (.cse2 (not (<= |old(~a19~0)| 0))) (.cse8 (not (<= 9 |old(~a28~0)|))) (.cse4 (not (= |old(~a11~0)| |old(~a25~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse6 .cse7 .cse8) (or .cse9 .cse10 .cse11 .cse2 .cse8 .cse4) (or .cse0 .cse12 .cse11 .cse2) (or .cse9 .cse6 .cse0) (or .cse13 .cse0 .cse1 .cse2) (or .cse9 .cse13 .cse6) (or .cse9 .cse5 .cse7 .cse2 .cse8) (or .cse13 .cse6 .cse1 .cse3 .cse4) (or .cse5 .cse7 .cse10 .cse2 .cse8) (or .cse5 .cse6 .cse7 .cse12 .cse8) (or .cse6 .cse0 .cse12 .cse11 .cse8) (or .cse5 .cse6 .cse1 .cse7 .cse8) (or .cse9 .cse6 .cse1 .cse7 .cse8) (or .cse1 .cse11 .cse2 .cse8 .cse4))) [2020-11-06 22:36:18,954 INFO L266 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-06 22:36:18,954 INFO L266 CegarLoopResult]: For program point L552-1(line 552) no Hoare annotation was computed. [2020-11-06 22:36:18,954 INFO L266 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-06 22:36:18,954 INFO L266 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-06 22:36:18,954 INFO L266 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-06 22:36:18,954 INFO L266 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-11-06 22:36:18,955 INFO L266 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-11-06 22:36:18,955 INFO L266 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-11-06 22:36:18,955 INFO L266 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-11-06 22:36:18,955 INFO L266 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,955 INFO L266 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,955 INFO L266 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,955 INFO L266 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,955 INFO L266 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,955 INFO L266 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,955 INFO L266 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-11-06 22:36:18,956 INFO L266 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-11-06 22:36:18,956 INFO L266 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-11-06 22:36:18,956 INFO L266 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-11-06 22:36:18,956 INFO L266 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-06 22:36:18,956 INFO L266 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-06 22:36:18,956 INFO L266 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-06 22:36:18,957 INFO L262 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse15 (= ~a19~0 |old(~a19~0)|)) (.cse9 (not (= ~a28~0 9))) (.cse12 (<= 9 ~a28~0)) (.cse22 (= ~a25~0 |old(~a25~0)|)) (.cse14 (<= ~a28~0 |old(~a28~0)|)) (.cse19 (= ~a28~0 |old(~a28~0)|)) (.cse10 (= ~a17~0 |old(~a17~0)|)) (.cse11 (= ~a11~0 |old(~a11~0)|)) (.cse21 (= ~a19~0 1)) (.cse13 (= ~a25~0 1))) (let ((.cse8 (and .cse19 .cse10 .cse11 .cse21 .cse13)) (.cse6 (not (= |old(~a25~0)| 1))) (.cse17 (not (<= |old(~a28~0)| 7))) (.cse20 (= ~a25~0 ~a11~0)) (.cse23 (= |old(~a17~0)| |old(~a28~0)|)) (.cse24 (not (= |old(~a11~0)| |old(~a25~0)|))) (.cse25 (not (<= |old(~a17~0)| 7))) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse2 (not (= |old(~a19~0)| 1))) (.cse7 (not (= 0 |old(~a11~0)|))) (.cse3 (= 9 |old(~a28~0)|)) (.cse4 (and .cse9 .cse10 .cse11 .cse12 .cse21 .cse22 .cse14)) (.cse5 (not (<= 9 |old(~a28~0)|))) (.cse1 (not (<= 8 |old(~a17~0)|))) (.cse18 (and .cse19 .cse10 .cse11 .cse22 .cse15)) (.cse27 (not (<= |old(~a25~0)| 0))) (.cse26 (not (<= |old(~a28~0)| 9))) (.cse16 (not (<= |old(~a19~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse2 .cse7 .cse3 .cse8 .cse5) (or .cse6 .cse0 .cse3 (and .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) .cse16 .cse5) (or .cse17 .cse1 .cse18 .cse7 .cse16) (or .cse17 .cse2 .cse7 (and .cse19 .cse20 .cse10 .cse21 .cse22) .cse23 .cse24) (or .cse6 .cse25 .cse26 (and .cse20 .cse10 .cse12 .cse13 .cse14 .cse15) .cse16 .cse5 .cse24) (or .cse6 .cse2 .cse1 .cse8) (or .cse6 .cse17 (and .cse19 .cse10 .cse11 .cse13 .cse15) .cse2) (or .cse0 .cse2 .cse3 .cse27 .cse4 .cse5) (or (and .cse20 .cse10 .cse12 .cse22 .cse14 .cse15) .cse7 .cse26 .cse16 .cse5 .cse24) (or .cse2 .cse1 .cse27 .cse26 (and .cse10 .cse11 .cse12 .cse21 .cse22 .cse14) .cse5) (or .cse1 .cse7 (and .cse19 .cse20 .cse10 .cse22 .cse15) .cse16 .cse23 .cse24) (or (and .cse9 .cse10 .cse11 .cse12 .cse22 .cse14 .cse15) .cse0 .cse3 .cse25 .cse16 .cse5) (or .cse0 .cse2 .cse7 .cse3 .cse4 .cse5) (or .cse1 .cse18 .cse27 .cse26 .cse16)))) [2020-11-06 22:36:18,957 INFO L266 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-06 22:36:18,957 INFO L266 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-06 22:36:18,957 INFO L266 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-11-06 22:36:18,957 INFO L266 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-11-06 22:36:18,957 INFO L266 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-11-06 22:36:18,957 INFO L266 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-11-06 22:36:18,957 INFO L266 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-11-06 22:36:18,957 INFO L266 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,957 INFO L266 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,958 INFO L266 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,958 INFO L266 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,958 INFO L266 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,958 INFO L266 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,958 INFO L266 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-11-06 22:36:18,958 INFO L266 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-11-06 22:36:18,958 INFO L266 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-11-06 22:36:18,958 INFO L266 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-11-06 22:36:18,958 INFO L266 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-06 22:36:18,958 INFO L266 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-06 22:36:18,958 INFO L266 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-06 22:36:18,959 INFO L266 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-06 22:36:18,959 INFO L266 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-06 22:36:18,959 INFO L266 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-11-06 22:36:18,959 INFO L266 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-11-06 22:36:18,959 INFO L266 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-11-06 22:36:18,959 INFO L266 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-11-06 22:36:18,959 INFO L266 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,959 INFO L266 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,959 INFO L266 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,959 INFO L266 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,959 INFO L266 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,960 INFO L266 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,960 INFO L266 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-11-06 22:36:18,960 INFO L266 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-11-06 22:36:18,960 INFO L266 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-11-06 22:36:18,960 INFO L266 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-06 22:36:18,960 INFO L266 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-06 22:36:18,960 INFO L266 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-06 22:36:18,960 INFO L266 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-06 22:36:18,960 INFO L266 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-06 22:36:18,960 INFO L266 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-11-06 22:36:18,960 INFO L266 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-11-06 22:36:18,961 INFO L266 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-11-06 22:36:18,961 INFO L266 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-11-06 22:36:18,961 INFO L266 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-11-06 22:36:18,961 INFO L266 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-11-06 22:36:18,961 INFO L266 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-11-06 22:36:18,961 INFO L266 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-11-06 22:36:18,961 INFO L266 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,961 INFO L266 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,961 INFO L266 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,961 INFO L266 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,961 INFO L266 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:36:18,962 INFO L266 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-11-06 22:36:18,962 INFO L266 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-11-06 22:36:18,962 INFO L266 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-11-06 22:36:18,962 INFO L266 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-11-06 22:36:18,962 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:36:18,962 INFO L262 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)) [2020-11-06 22:36:18,962 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 22:36:18,962 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:36:18,963 INFO L262 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse0 (= 7 |old(~a28~0)|)) (.cse13 (= ~a28~0 |old(~a28~0)|)) (.cse17 (not (= ~a28~0 ~a17~0))) (.cse5 (= ~a25~0 ~a11~0)) (.cse14 (= ~a17~0 |old(~a17~0)|)) (.cse10 (= ~a19~0 1)) (.cse16 (= ~a11~0 0)) (.cse11 (<= ~a28~0 7))) (let ((.cse7 (= ~a25~0 1)) (.cse15 (or (and .cse17 .cse5 .cse0 .cse10 .cse16 .cse11) (and .cse13 .cse17 .cse5 .cse14 (= ~a11~0 |old(~a11~0)|) .cse10 (= ~a25~0 |old(~a25~0)|) .cse16 .cse11 (= ~a19~0 |old(~a19~0)|)))) (.cse3 (<= 8 ~a17~0)) (.cse1 (<= ~a19~0 0)) (.cse8 (<= ~a17~0 7)) (.cse12 (not (= ~a28~0 9))) (.cse6 (<= 9 ~a28~0)) (.cse2 (<= ~a17~0 |old(~a17~0)|)) (.cse9 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0))) (or (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 (<= ~a28~0 9) .cse4) (and .cse5 .cse0 .cse1 .cse6 .cse2 .cse7 .cse8 .cse9) (and .cse0 .cse10 .cse2 .cse7 .cse11) (and .cse12 .cse0 .cse6 .cse10 .cse2 .cse3 .cse9) (and .cse13 .cse14 .cse15) (and .cse0 .cse6 .cse10 .cse2 .cse3 .cse4 .cse9) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse5 .cse1 .cse6 .cse2 .cse16 .cse8 .cse9) (and .cse0 .cse10 .cse2 .cse3 .cse7) (and .cse12 .cse0 .cse6 .cse10 .cse2 .cse7 .cse16) (not (= 0 |old(~a11~0)|)) (and .cse0 .cse17 .cse5 .cse1 .cse2 .cse3 .cse16) (and .cse12 .cse0 .cse1 .cse6 .cse2 .cse7 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse16 .cse11) (and .cse12 .cse0 .cse6 .cse10 .cse16 .cse9) (and .cse2 .cse15 .cse3) (= |old(~a17~0)| |old(~a28~0)|) (and .cse12 .cse0 .cse1 .cse6 .cse2 .cse8 .cse9) (and .cse12 .cse0 .cse6 .cse10 .cse2 .cse9 .cse4) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-11-06 22:36:18,963 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (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)|))) [2020-11-06 22:36:18,963 INFO L266 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-11-06 22:36:18,963 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-11-06 22:36:18,963 INFO L262 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse0 (= 7 |old(~a28~0)|)) (.cse13 (= ~a28~0 |old(~a28~0)|)) (.cse17 (not (= ~a28~0 ~a17~0))) (.cse5 (= ~a25~0 ~a11~0)) (.cse14 (= ~a17~0 |old(~a17~0)|)) (.cse10 (= ~a19~0 1)) (.cse16 (= ~a11~0 0)) (.cse11 (<= ~a28~0 7))) (let ((.cse7 (= ~a25~0 1)) (.cse15 (or (and .cse17 .cse5 .cse0 .cse10 .cse16 .cse11) (and .cse13 .cse17 .cse5 .cse14 (= ~a11~0 |old(~a11~0)|) .cse10 (= ~a25~0 |old(~a25~0)|) .cse16 .cse11 (= ~a19~0 |old(~a19~0)|)))) (.cse3 (<= 8 ~a17~0)) (.cse1 (<= ~a19~0 0)) (.cse8 (<= ~a17~0 7)) (.cse12 (not (= ~a28~0 9))) (.cse6 (<= 9 ~a28~0)) (.cse2 (<= ~a17~0 |old(~a17~0)|)) (.cse9 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0))) (or (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 (<= ~a28~0 9) .cse4) (and .cse5 .cse0 .cse1 .cse6 .cse2 .cse7 .cse8 .cse9) (and .cse0 .cse10 .cse2 .cse7 .cse11) (and .cse12 .cse0 .cse6 .cse10 .cse2 .cse3 .cse9) (and .cse13 .cse14 .cse15) (and .cse0 .cse6 .cse10 .cse2 .cse3 .cse4 .cse9) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse5 .cse1 .cse6 .cse2 .cse16 .cse8 .cse9) (and .cse0 .cse10 .cse2 .cse3 .cse7) (and .cse12 .cse0 .cse6 .cse10 .cse2 .cse7 .cse16) (not (= 0 |old(~a11~0)|)) (and .cse0 .cse17 .cse5 .cse1 .cse2 .cse3 .cse16) (and .cse12 .cse0 .cse1 .cse6 .cse2 .cse7 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse16 .cse11) (and .cse12 .cse0 .cse6 .cse10 .cse16 .cse9) (and .cse2 .cse15 .cse3) (= |old(~a17~0)| |old(~a28~0)|) (and .cse12 .cse0 .cse1 .cse6 .cse2 .cse8 .cse9) (and .cse12 .cse0 .cse6 .cse10 .cse2 .cse9 .cse4) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-11-06 22:36:18,964 INFO L266 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-11-06 22:36:18,964 INFO L266 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-11-06 22:36:19,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:36:19 BoogieIcfgContainer [2020-11-06 22:36:19,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:36:19,002 INFO L168 Benchmark]: Toolchain (without parser) took 43295.16 ms. Allocated memory was 159.4 MB in the beginning and 621.8 MB in the end (delta: 462.4 MB). Free memory was 133.4 MB in the beginning and 455.1 MB in the end (delta: -321.7 MB). Peak memory consumption was 374.6 MB. Max. memory is 8.0 GB. [2020-11-06 22:36:19,009 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 159.4 MB. Free memory is still 134.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:36:19,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.69 ms. Allocated memory is still 159.4 MB. Free memory was 132.6 MB in the beginning and 107.1 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:36:19,010 INFO L168 Benchmark]: Boogie Preprocessor took 157.92 ms. Allocated memory is still 159.4 MB. Free memory was 107.1 MB in the beginning and 139.1 MB in the end (delta: -32.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 8.0 GB. [2020-11-06 22:36:19,012 INFO L168 Benchmark]: RCFGBuilder took 1514.40 ms. Allocated memory was 159.4 MB in the beginning and 199.2 MB in the end (delta: 39.8 MB). Free memory was 139.1 MB in the beginning and 140.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 66.6 MB. Max. memory is 8.0 GB. [2020-11-06 22:36:19,013 INFO L168 Benchmark]: TraceAbstraction took 40804.18 ms. Allocated memory was 199.2 MB in the beginning and 621.8 MB in the end (delta: 422.6 MB). Free memory was 140.1 MB in the beginning and 455.1 MB in the end (delta: -315.0 MB). Peak memory consumption was 340.9 MB. Max. memory is 8.0 GB. [2020-11-06 22:36:19,018 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 159.4 MB. Free memory is still 134.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 800.69 ms. Allocated memory is still 159.4 MB. Free memory was 132.6 MB in the beginning and 107.1 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 157.92 ms. Allocated memory is still 159.4 MB. Free memory was 107.1 MB in the beginning and 139.1 MB in the end (delta: -32.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1514.40 ms. Allocated memory was 159.4 MB in the beginning and 199.2 MB in the end (delta: 39.8 MB). Free memory was 139.1 MB in the beginning and 140.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 66.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 40804.18 ms. Allocated memory was 199.2 MB in the beginning and 621.8 MB in the end (delta: 422.6 MB). Free memory was 140.1 MB in the beginning and 455.1 MB in the end (delta: -315.0 MB). Peak memory consumption was 340.9 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) || (((((7 == \old(a28) && a19 <= 0) && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && a25 <= 0)) || (((((((a25 == a11 && 7 == \old(a28)) && a19 <= 0) && 9 <= a28) && a17 <= \old(a17)) && a25 == 1) && a17 <= 7) && a28 <= 10)) || ((((7 == \old(a28) && a19 == 1) && a17 <= \old(a17)) && a25 == 1) && a28 <= 7)) || ((((((!(a28 == 9) && 7 == \old(a28)) && 9 <= a28) && a19 == 1) && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10)) || ((a28 == \old(a28) && a17 == \old(a17)) && ((((((!(a28 == a17) && a25 == a11) && 7 == \old(a28)) && a19 == 1) && a11 == 0) && a28 <= 7) || (((((((((a28 == \old(a28) && !(a28 == a17)) && a25 == a11) && a17 == \old(a17)) && a11 == \old(a11)) && a19 == 1) && a25 == \old(a25)) && a11 == 0) && a28 <= 7) && a19 == \old(a19))))) || ((((((7 == \old(a28) && 9 <= a28) && a19 == 1) && a17 <= \old(a17)) && 8 <= a17) && a25 <= 0) && a28 <= 10)) || !(\old(a28) <= 7)) || (((((((7 == \old(a28) && a25 == a11) && a19 <= 0) && 9 <= a28) && a17 <= \old(a17)) && a11 == 0) && a17 <= 7) && a28 <= 10)) || ((((7 == \old(a28) && a19 == 1) && a17 <= \old(a17)) && 8 <= a17) && a25 == 1)) || ((((((!(a28 == 9) && 7 == \old(a28)) && 9 <= a28) && a19 == 1) && a17 <= \old(a17)) && a25 == 1) && a11 == 0)) || !(0 == \old(a11))) || ((((((7 == \old(a28) && !(a28 == a17)) && a25 == a11) && a19 <= 0) && a17 <= \old(a17)) && 8 <= a17) && a11 == 0)) || ((((((!(a28 == 9) && 7 == \old(a28)) && a19 <= 0) && 9 <= a28) && a17 <= \old(a17)) && a25 == 1) && a28 <= 10)) || (((((7 == \old(a28) && a19 <= 0) && a17 <= \old(a17)) && 8 <= a17) && a11 == 0) && a28 <= 7)) || (((((!(a28 == 9) && 7 == \old(a28)) && 9 <= a28) && a19 == 1) && a11 == 0) && a28 <= 10)) || ((a17 <= \old(a17) && ((((((!(a28 == a17) && a25 == a11) && 7 == \old(a28)) && a19 == 1) && a11 == 0) && a28 <= 7) || (((((((((a28 == \old(a28) && !(a28 == a17)) && a25 == a11) && a17 == \old(a17)) && a11 == \old(a11)) && a19 == 1) && a25 == \old(a25)) && a11 == 0) && a28 <= 7) && a19 == \old(a19)))) && 8 <= a17)) || \old(a17) == \old(a28)) || ((((((!(a28 == 9) && 7 == \old(a28)) && a19 <= 0) && 9 <= a28) && a17 <= \old(a17)) && a17 <= 7) && a28 <= 10)) || ((((((!(a28 == 9) && 7 == \old(a28)) && 9 <= a28) && a19 == 1) && a17 <= \old(a17)) && a28 <= 10) && a25 <= 0)) || !(\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: 31.8s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 23.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 729 SDtfs, 6244 SDslu, 582 SDs, 0 SdLazy, 10940 SolverSat, 1849 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1499 GetRequests, 1384 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4105occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 1481 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 380 PreInvPairs, 448 NumberOfFragments, 1877 HoareAnnotationTreeSize, 380 FomulaSimplifications, 48012 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 8470 FormulaSimplificationTreeSizeReductionInter, 7.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 3038 NumberOfCodeBlocks, 3038 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3021 ConstructedInterpolants, 0 QuantifiedInterpolants, 1488163 SizeOfPredicates, 9 NumberOfNonLiveVariables, 3734 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 1094/1141 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...