/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/Problem01_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:31:31,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:31:31,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:31:31,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:31:31,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:31:31,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:31:31,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:31:31,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:31:31,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:31:31,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:31:31,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:31:31,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:31:31,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:31:31,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:31:31,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:31:31,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:31:31,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:31:31,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:31:31,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:31:31,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:31:31,730 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:31:31,759 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:31:31,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:31:31,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:31:31,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:31:31,761 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:31:31,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:31:31,762 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:31:31,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:31:31,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:31:31,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:31:31,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:31:31,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:31:31,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:31:31,763 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:31:31,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:31:31,764 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:31:31,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:31:31,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:31:31,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:31:31,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:31:31,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:31:31,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:31:31,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:31:31,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:31:31,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:31:31,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:31:31,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:31:31,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:31:31,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:31:31,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:31:32,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:31:32,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:31:32,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:31:32,192 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:31:32,192 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:31:32,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-10-23 18:31:32,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8cfb9914/aab05372ce284fdd9203c3572128452c/FLAG88bf746c3 [2020-10-23 18:31:32,980 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:31:32,986 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-10-23 18:31:33,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8cfb9914/aab05372ce284fdd9203c3572128452c/FLAG88bf746c3 [2020-10-23 18:31:33,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8cfb9914/aab05372ce284fdd9203c3572128452c [2020-10-23 18:31:33,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:31:33,198 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:31:33,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:31:33,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:31:33,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:31:33,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:31:33" (1/1) ... [2020-10-23 18:31:33,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6761d0bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:33, skipping insertion in model container [2020-10-23 18:31:33,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:31:33" (1/1) ... [2020-10-23 18:31:33,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:31:33,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:31:33,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:31:33,733 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:31:33,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:31:33,899 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:31:33,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:33 WrapperNode [2020-10-23 18:31:33,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:31:33,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:31:33,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:31:33,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:31:33,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:33" (1/1) ... [2020-10-23 18:31:33,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:33" (1/1) ... [2020-10-23 18:31:33,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:33" (1/1) ... [2020-10-23 18:31:33,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:33" (1/1) ... [2020-10-23 18:31:33,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:33" (1/1) ... [2020-10-23 18:31:34,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:33" (1/1) ... [2020-10-23 18:31:34,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:33" (1/1) ... [2020-10-23 18:31:34,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:31:34,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:31:34,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:31:34,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:31:34,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:31:34,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:31:34,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:31:34,132 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:31:34,132 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:31:34,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:31:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:31:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:31:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:31:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:31:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:31:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:31:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:31:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:31:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:31:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:31:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:31:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:31:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:31:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:31:35,987 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:31:35,987 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:31:35,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:31:35 BoogieIcfgContainer [2020-10-23 18:31:35,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:31:35,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:31:35,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:31:35,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:31:35,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:31:33" (1/3) ... [2020-10-23 18:31:35,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41e44584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:31:35, skipping insertion in model container [2020-10-23 18:31:35,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:33" (2/3) ... [2020-10-23 18:31:35,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41e44584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:31:35, skipping insertion in model container [2020-10-23 18:31:35,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:31:35" (3/3) ... [2020-10-23 18:31:35,999 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label41.c [2020-10-23 18:31:36,011 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:31:36,016 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:31:36,029 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:31:36,057 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:31:36,058 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:31:36,058 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:31:36,058 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:31:36,058 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:31:36,058 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:31:36,058 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:31:36,059 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:31:36,080 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-23 18:31:36,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-23 18:31:36,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:36,092 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] [2020-10-23 18:31:36,092 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:36,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:36,098 INFO L82 PathProgramCache]: Analyzing trace with hash 2127735041, now seen corresponding path program 1 times [2020-10-23 18:31:36,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:36,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193879396] [2020-10-23 18:31:36,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:36,822 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:31:36,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:36,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:31:36,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193879396] [2020-10-23 18:31:36,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:31:36,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:31:36,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825501578] [2020-10-23 18:31:36,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:31:36,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:37,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:31:37,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:31:37,006 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-10-23 18:31:37,248 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:31:39,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:39,709 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-23 18:31:39,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:31:39,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2020-10-23 18:31:39,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:39,746 INFO L225 Difference]: With dead ends: 562 [2020-10-23 18:31:39,746 INFO L226 Difference]: Without dead ends: 287 [2020-10-23 18:31:39,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:31:39,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-23 18:31:39,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-23 18:31:39,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-23 18:31:39,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 403 transitions. [2020-10-23 18:31:39,883 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 403 transitions. Word has length 92 [2020-10-23 18:31:39,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:39,884 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 403 transitions. [2020-10-23 18:31:39,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:31:39,884 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 403 transitions. [2020-10-23 18:31:39,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-23 18:31:39,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:39,895 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 18:31:39,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:31:39,896 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:39,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:39,897 INFO L82 PathProgramCache]: Analyzing trace with hash -840609797, now seen corresponding path program 1 times [2020-10-23 18:31:39,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:39,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969144868] [2020-10-23 18:31:39,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:40,198 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:31:40,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:40,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:40,356 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:31:40,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969144868] [2020-10-23 18:31:40,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:31:40,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:31:40,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033699638] [2020-10-23 18:31:40,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:31:40,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:40,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:31:40,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:31:40,361 INFO L87 Difference]: Start difference. First operand 281 states and 403 transitions. Second operand 8 states. [2020-10-23 18:31:40,613 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:31:43,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:43,051 INFO L93 Difference]: Finished difference Result 715 states and 1051 transitions. [2020-10-23 18:31:43,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:31:43,052 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2020-10-23 18:31:43,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:43,059 INFO L225 Difference]: With dead ends: 715 [2020-10-23 18:31:43,059 INFO L226 Difference]: Without dead ends: 440 [2020-10-23 18:31:43,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:31:43,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-23 18:31:43,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 422. [2020-10-23 18:31:43,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-10-23 18:31:43,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 591 transitions. [2020-10-23 18:31:43,129 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 591 transitions. Word has length 102 [2020-10-23 18:31:43,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:43,129 INFO L481 AbstractCegarLoop]: Abstraction has 422 states and 591 transitions. [2020-10-23 18:31:43,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:31:43,129 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 591 transitions. [2020-10-23 18:31:43,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-23 18:31:43,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:43,133 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] [2020-10-23 18:31:43,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:31:43,134 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:43,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:43,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1561353346, now seen corresponding path program 1 times [2020-10-23 18:31:43,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:43,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872127004] [2020-10-23 18:31:43,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:43,400 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:31:43,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:43,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:43,484 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-23 18:31:43,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872127004] [2020-10-23 18:31:43,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192850939] [2020-10-23 18:31:43,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:31:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:43,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-23 18:31:43,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:31:43,826 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:31:43,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:31:43,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-10-23 18:31:43,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187486707] [2020-10-23 18:31:43,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:31:43,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:43,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:31:43,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:31:43,836 INFO L87 Difference]: Start difference. First operand 422 states and 591 transitions. Second operand 3 states. [2020-10-23 18:31:44,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:44,956 INFO L93 Difference]: Finished difference Result 1249 states and 1791 transitions. [2020-10-23 18:31:44,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:31:44,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-10-23 18:31:44,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:44,963 INFO L225 Difference]: With dead ends: 1249 [2020-10-23 18:31:44,964 INFO L226 Difference]: Without dead ends: 833 [2020-10-23 18:31:44,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:31:44,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2020-10-23 18:31:45,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2020-10-23 18:31:45,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 833 states. [2020-10-23 18:31:45,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1103 transitions. [2020-10-23 18:31:45,030 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1103 transitions. Word has length 103 [2020-10-23 18:31:45,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:45,031 INFO L481 AbstractCegarLoop]: Abstraction has 833 states and 1103 transitions. [2020-10-23 18:31:45,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:31:45,032 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1103 transitions. [2020-10-23 18:31:45,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-23 18:31:45,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:45,047 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 18:31:45,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-23 18:31:45,264 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:45,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:45,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1324559575, now seen corresponding path program 1 times [2020-10-23 18:31:45,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:45,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087405500] [2020-10-23 18:31:45,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:45,567 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:31:45,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:45,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:45,750 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:31:45,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087405500] [2020-10-23 18:31:45,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:31:45,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:31:45,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405001151] [2020-10-23 18:31:45,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:31:45,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:45,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:31:45,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:31:45,756 INFO L87 Difference]: Start difference. First operand 833 states and 1103 transitions. Second operand 8 states. [2020-10-23 18:31:45,941 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:31:47,220 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-23 18:31:48,026 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-23 18:31:49,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:49,102 INFO L93 Difference]: Finished difference Result 2246 states and 3155 transitions. [2020-10-23 18:31:49,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 18:31:49,103 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2020-10-23 18:31:49,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:49,112 INFO L225 Difference]: With dead ends: 2246 [2020-10-23 18:31:49,112 INFO L226 Difference]: Without dead ends: 1419 [2020-10-23 18:31:49,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:31:49,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2020-10-23 18:31:49,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1127. [2020-10-23 18:31:49,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2020-10-23 18:31:49,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1464 transitions. [2020-10-23 18:31:49,176 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1464 transitions. Word has length 104 [2020-10-23 18:31:49,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:49,176 INFO L481 AbstractCegarLoop]: Abstraction has 1127 states and 1464 transitions. [2020-10-23 18:31:49,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:31:49,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1464 transitions. [2020-10-23 18:31:49,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-23 18:31:49,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:49,180 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:31:49,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:31:49,180 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:49,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:49,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1822207020, now seen corresponding path program 1 times [2020-10-23 18:31:49,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:49,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965415126] [2020-10-23 18:31:49,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:49,436 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:31:49,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:49,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:49,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:31:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:49,587 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:31:49,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965415126] [2020-10-23 18:31:49,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170334102] [2020-10-23 18:31:49,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:31:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:49,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-23 18:31:49,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:31:49,913 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-23 18:31:49,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:31:49,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-10-23 18:31:49,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019855008] [2020-10-23 18:31:49,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:31:49,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:49,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:31:49,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:31:49,918 INFO L87 Difference]: Start difference. First operand 1127 states and 1464 transitions. Second operand 3 states. [2020-10-23 18:31:50,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:50,909 INFO L93 Difference]: Finished difference Result 3070 states and 4103 transitions. [2020-10-23 18:31:50,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:31:50,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-10-23 18:31:50,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:50,928 INFO L225 Difference]: With dead ends: 3070 [2020-10-23 18:31:50,928 INFO L226 Difference]: Without dead ends: 1949 [2020-10-23 18:31:50,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:31:50,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2020-10-23 18:31:51,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1675. [2020-10-23 18:31:51,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1675 states. [2020-10-23 18:31:51,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 2210 transitions. [2020-10-23 18:31:51,025 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 2210 transitions. Word has length 115 [2020-10-23 18:31:51,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:51,034 INFO L481 AbstractCegarLoop]: Abstraction has 1675 states and 2210 transitions. [2020-10-23 18:31:51,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:31:51,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 2210 transitions. [2020-10-23 18:31:51,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-23 18:31:51,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:51,041 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:31:51,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:31:51,257 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:51,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:51,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1857634098, now seen corresponding path program 1 times [2020-10-23 18:31:51,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:51,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592756316] [2020-10-23 18:31:51,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:51,494 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:31:51,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:51,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:51,699 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:31:51,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592756316] [2020-10-23 18:31:51,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:31:51,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:31:51,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667751160] [2020-10-23 18:31:51,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:31:51,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:51,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:31:51,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:31:51,705 INFO L87 Difference]: Start difference. First operand 1675 states and 2210 transitions. Second operand 7 states. [2020-10-23 18:31:51,904 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 18:31:53,211 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-23 18:31:54,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:54,237 INFO L93 Difference]: Finished difference Result 3805 states and 5168 transitions. [2020-10-23 18:31:54,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 18:31:54,238 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2020-10-23 18:31:54,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:54,253 INFO L225 Difference]: With dead ends: 3805 [2020-10-23 18:31:54,254 INFO L226 Difference]: Without dead ends: 2136 [2020-10-23 18:31:54,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:31:54,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2020-10-23 18:31:54,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 1981. [2020-10-23 18:31:54,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2020-10-23 18:31:54,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2632 transitions. [2020-10-23 18:31:54,359 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2632 transitions. Word has length 125 [2020-10-23 18:31:54,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:54,359 INFO L481 AbstractCegarLoop]: Abstraction has 1981 states and 2632 transitions. [2020-10-23 18:31:54,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:31:54,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2632 transitions. [2020-10-23 18:31:54,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-23 18:31:54,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:54,366 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:31:54,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 18:31:54,366 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:54,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:54,367 INFO L82 PathProgramCache]: Analyzing trace with hash -2115217196, now seen corresponding path program 1 times [2020-10-23 18:31:54,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:54,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967002905] [2020-10-23 18:31:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:54,705 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:31:54,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:54,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:54,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 18:31:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:55,034 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:31:55,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967002905] [2020-10-23 18:31:55,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954809595] [2020-10-23 18:31:55,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:31:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:55,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:31:55,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:31:55,360 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:31:55,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:31:55,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 12 [2020-10-23 18:31:55,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213402511] [2020-10-23 18:31:55,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:31:55,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:55,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:31:55,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:31:55,370 INFO L87 Difference]: Start difference. First operand 1981 states and 2632 transitions. Second operand 3 states. [2020-10-23 18:31:56,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:56,425 INFO L93 Difference]: Finished difference Result 4633 states and 6235 transitions. [2020-10-23 18:31:56,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:31:56,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-10-23 18:31:56,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:56,447 INFO L225 Difference]: With dead ends: 4633 [2020-10-23 18:31:56,448 INFO L226 Difference]: Without dead ends: 2658 [2020-10-23 18:31:56,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:31:56,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2020-10-23 18:31:56,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2523. [2020-10-23 18:31:56,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2523 states. [2020-10-23 18:31:56,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3260 transitions. [2020-10-23 18:31:56,552 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3260 transitions. Word has length 133 [2020-10-23 18:31:56,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:56,553 INFO L481 AbstractCegarLoop]: Abstraction has 2523 states and 3260 transitions. [2020-10-23 18:31:56,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:31:56,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3260 transitions. [2020-10-23 18:31:56,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-23 18:31:56,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:56,562 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:31:56,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:31:56,776 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:56,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:56,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1380587169, now seen corresponding path program 1 times [2020-10-23 18:31:56,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:56,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690481142] [2020-10-23 18:31:56,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:57,002 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:31:57,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:57,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:57,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:31:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:57,170 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:31:57,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690481142] [2020-10-23 18:31:57,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280454160] [2020-10-23 18:31:57,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:31:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:57,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:31:57,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:31:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:31:57,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:31:57,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:31:57,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113683343] [2020-10-23 18:31:57,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:31:57,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:57,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:31:57,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:31:57,517 INFO L87 Difference]: Start difference. First operand 2523 states and 3260 transitions. Second operand 10 states. [2020-10-23 18:31:57,959 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:31:59,529 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:32:00,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:00,884 INFO L93 Difference]: Finished difference Result 5755 states and 7376 transitions. [2020-10-23 18:32:00,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 18:32:00,889 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 146 [2020-10-23 18:32:00,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:00,905 INFO L225 Difference]: With dead ends: 5755 [2020-10-23 18:32:00,906 INFO L226 Difference]: Without dead ends: 3095 [2020-10-23 18:32:00,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-10-23 18:32:00,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2020-10-23 18:32:01,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 2952. [2020-10-23 18:32:01,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2952 states. [2020-10-23 18:32:01,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2952 states to 2952 states and 3615 transitions. [2020-10-23 18:32:01,033 INFO L78 Accepts]: Start accepts. Automaton has 2952 states and 3615 transitions. Word has length 146 [2020-10-23 18:32:01,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:01,033 INFO L481 AbstractCegarLoop]: Abstraction has 2952 states and 3615 transitions. [2020-10-23 18:32:01,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:32:01,033 INFO L276 IsEmpty]: Start isEmpty. Operand 2952 states and 3615 transitions. [2020-10-23 18:32:01,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-23 18:32:01,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:01,041 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 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] [2020-10-23 18:32:01,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:01,256 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:01,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:01,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1839636314, now seen corresponding path program 1 times [2020-10-23 18:32:01,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:01,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638490121] [2020-10-23 18:32:01,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:01,455 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:32:01,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:01,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:01,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:32:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:01,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-23 18:32:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:01,615 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 72 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-23 18:32:01,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638490121] [2020-10-23 18:32:01,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304519541] [2020-10-23 18:32:01,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:01,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:32:01,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:32:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-23 18:32:01,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:32:01,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-10-23 18:32:01,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953059673] [2020-10-23 18:32:01,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:32:01,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:01,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:32:01,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:32:01,890 INFO L87 Difference]: Start difference. First operand 2952 states and 3615 transitions. Second operand 3 states. [2020-10-23 18:32:02,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:02,849 INFO L93 Difference]: Finished difference Result 6174 states and 7642 transitions. [2020-10-23 18:32:02,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:32:02,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-10-23 18:32:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:02,866 INFO L225 Difference]: With dead ends: 6174 [2020-10-23 18:32:02,867 INFO L226 Difference]: Without dead ends: 3363 [2020-10-23 18:32:02,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:32:02,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3363 states. [2020-10-23 18:32:02,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3363 to 2688. [2020-10-23 18:32:02,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2688 states. [2020-10-23 18:32:02,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2688 states to 2688 states and 3248 transitions. [2020-10-23 18:32:02,960 INFO L78 Accepts]: Start accepts. Automaton has 2688 states and 3248 transitions. Word has length 161 [2020-10-23 18:32:02,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:02,961 INFO L481 AbstractCegarLoop]: Abstraction has 2688 states and 3248 transitions. [2020-10-23 18:32:02,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:32:02,961 INFO L276 IsEmpty]: Start isEmpty. Operand 2688 states and 3248 transitions. [2020-10-23 18:32:02,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-23 18:32:02,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:02,969 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-23 18:32:03,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:03,184 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:03,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:03,185 INFO L82 PathProgramCache]: Analyzing trace with hash 654861471, now seen corresponding path program 1 times [2020-10-23 18:32:03,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:03,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821691661] [2020-10-23 18:32:03,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:03,376 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:32:03,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:03,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:03,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:32:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:03,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 18:32:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:03,530 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 79 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-23 18:32:03,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821691661] [2020-10-23 18:32:03,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660703712] [2020-10-23 18:32:03,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:03,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:32:03,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:32:03,862 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-23 18:32:03,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:32:03,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:32:03,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009370292] [2020-10-23 18:32:03,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:32:03,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:03,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:32:03,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:32:03,865 INFO L87 Difference]: Start difference. First operand 2688 states and 3248 transitions. Second operand 10 states. [2020-10-23 18:32:04,096 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:32:04,817 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:32:06,346 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:32:07,253 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:32:09,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:09,725 INFO L93 Difference]: Finished difference Result 5446 states and 6783 transitions. [2020-10-23 18:32:09,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-23 18:32:09,726 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 170 [2020-10-23 18:32:09,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:09,745 INFO L225 Difference]: With dead ends: 5446 [2020-10-23 18:32:09,745 INFO L226 Difference]: Without dead ends: 2899 [2020-10-23 18:32:09,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=169, Invalid=643, Unknown=0, NotChecked=0, Total=812 [2020-10-23 18:32:09,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2020-10-23 18:32:09,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 2690. [2020-10-23 18:32:09,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2690 states. [2020-10-23 18:32:09,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 3118 transitions. [2020-10-23 18:32:09,840 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 3118 transitions. Word has length 170 [2020-10-23 18:32:09,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:09,841 INFO L481 AbstractCegarLoop]: Abstraction has 2690 states and 3118 transitions. [2020-10-23 18:32:09,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:32:09,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 3118 transitions. [2020-10-23 18:32:09,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-23 18:32:09,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:09,871 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-23 18:32:10,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:10,087 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:10,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:10,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1096003939, now seen corresponding path program 1 times [2020-10-23 18:32:10,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:10,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057984015] [2020-10-23 18:32:10,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:10,475 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:32:10,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:10,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:10,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 18:32:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:10,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-23 18:32:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:10,878 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 106 proven. 21 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-10-23 18:32:10,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057984015] [2020-10-23 18:32:10,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217178937] [2020-10-23 18:32:10,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:11,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-23 18:32:11,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:32:11,264 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 54 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-23 18:32:11,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:32:11,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4] total 13 [2020-10-23 18:32:11,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016189391] [2020-10-23 18:32:11,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 18:32:11,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:11,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 18:32:11,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:32:11,266 INFO L87 Difference]: Start difference. First operand 2690 states and 3118 transitions. Second operand 13 states. [2020-10-23 18:32:11,504 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:32:12,161 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-23 18:32:12,878 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-23 18:32:13,777 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-10-23 18:32:14,585 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-23 18:32:15,086 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:32:16,282 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-23 18:32:20,558 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2020-10-23 18:32:22,754 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2020-10-23 18:32:24,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:24,052 INFO L93 Difference]: Finished difference Result 6463 states and 7722 transitions. [2020-10-23 18:32:24,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-23 18:32:24,053 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 208 [2020-10-23 18:32:24,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:24,054 INFO L225 Difference]: With dead ends: 6463 [2020-10-23 18:32:24,054 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:32:24,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=514, Invalid=1378, Unknown=0, NotChecked=0, Total=1892 [2020-10-23 18:32:24,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:32:24,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:32:24,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:32:24,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:32:24,069 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 208 [2020-10-23 18:32:24,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:24,069 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:32:24,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 18:32:24,070 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:32:24,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:32:24,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:24,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:32:25,609 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 178 [2020-10-23 18:32:25,881 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 178 [2020-10-23 18:32:26,276 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 42 [2020-10-23 18:32:30,818 WARN L193 SmtUtils]: Spent 4.53 s on a formula simplification. DAG size of input: 225 DAG size of output: 94 [2020-10-23 18:32:33,054 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 155 DAG size of output: 73 [2020-10-23 18:32:33,216 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:32:35,449 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 155 DAG size of output: 73 [2020-10-23 18:32:36,982 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 114 DAG size of output: 67 [2020-10-23 18:32:36,989 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:32:36,989 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:32:36,989 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:32:36,989 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:32:36,990 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:32:36,990 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-23 18:32:36,990 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:32:36,991 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,991 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,991 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,991 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,991 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,992 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,992 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-23 18:32:36,992 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-23 18:32:36,992 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-23 18:32:36,992 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-23 18:32:36,993 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-23 18:32:36,993 INFO L270 CegarLoopResult]: At program point L433(line 433) the Hoare annotation is: (let ((.cse12 (= |old(~a20~0)| 1))) (let ((.cse11 (not (<= 5 |old(~a16~0)|))) (.cse0 (not (<= |old(~a16~0)| 5))) (.cse1 (not (= |old(~a7~0)| 1))) (.cse4 (not (<= |old(~a17~0)| 0))) (.cse7 (not (<= 6 |old(~a16~0)|))) (.cse13 (not (= 0 |old(~a17~0)|))) (.cse14 (not (<= 15 |old(~a8~0)|))) (.cse2 (not (= 4 |old(~a16~0)|))) (.cse8 (not (= |old(~a17~0)| 1))) (.cse3 (not (<= 14 |old(~a8~0)|))) (.cse6 (not .cse12)) (.cse5 (not (= |old(~a21~0)| 1))) (.cse9 (not (= ~a12~0 8))) (.cse10 (not (= |old(~a7~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1 .cse4 .cse5) (or .cse1 .cse6 .cse4 .cse7) (or .cse8 .cse6 .cse7 .cse5 .cse9 .cse10) (or .cse11 .cse12 .cse3 .cse0 .cse5 .cse9 .cse10 .cse13) (or .cse11 .cse14 .cse6 .cse4 .cse5 .cse9 .cse10) (or (not (= |old(~a8~0)| 13)) .cse5 .cse9 .cse10 .cse2 .cse13) (or .cse8 .cse0 .cse1 .cse6) (or .cse3 .cse5 .cse9 .cse2 .cse10 .cse13) (or .cse6 .cse4 .cse5 .cse2 .cse9 .cse10) (or .cse14 .cse7 .cse5 .cse9 .cse10 .cse13) (or .cse8 .cse14 .cse5 .cse9 .cse10) (or .cse8 .cse6 .cse2) (or .cse8 .cse3 .cse6 .cse5 .cse9 .cse10)))) [2020-10-23 18:32:36,993 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-23 18:32:36,993 INFO L274 CegarLoopResult]: For program point L433-1(line 433) no Hoare annotation was computed. [2020-10-23 18:32:36,994 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-23 18:32:36,994 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-23 18:32:36,994 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-23 18:32:36,994 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-23 18:32:36,994 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-23 18:32:36,994 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,994 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,994 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,994 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,995 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,995 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,995 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-23 18:32:36,995 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-23 18:32:36,995 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-23 18:32:36,995 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-23 18:32:36,995 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-23 18:32:36,995 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-23 18:32:36,995 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-23 18:32:36,995 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-23 18:32:36,995 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-23 18:32:36,996 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-23 18:32:36,996 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,996 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,996 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,996 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,996 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,996 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,996 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-23 18:32:36,996 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-23 18:32:36,996 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-23 18:32:36,996 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-23 18:32:36,996 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-23 18:32:36,997 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-23 18:32:36,997 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-23 18:32:36,997 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-23 18:32:36,997 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-23 18:32:36,997 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-23 18:32:36,997 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-23 18:32:36,997 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-23 18:32:36,997 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-23 18:32:36,997 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-23 18:32:36,997 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-23 18:32:36,997 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,998 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,998 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,998 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,998 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,998 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-23 18:32:36,998 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-23 18:32:36,998 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-23 18:32:36,998 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-23 18:32:36,998 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-23 18:32:36,999 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-23 18:32:36,999 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-23 18:32:36,999 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-23 18:32:36,999 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-23 18:32:36,999 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,999 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,999 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,999 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:36,999 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,000 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-23 18:32:37,000 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-23 18:32:37,000 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-23 18:32:37,000 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-23 18:32:37,000 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-23 18:32:37,000 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-23 18:32:37,000 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-23 18:32:37,000 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-23 18:32:37,000 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-23 18:32:37,001 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-23 18:32:37,001 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-23 18:32:37,001 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-23 18:32:37,001 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-23 18:32:37,001 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,001 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,001 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,001 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,001 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,001 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-23 18:32:37,001 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-23 18:32:37,002 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-23 18:32:37,002 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,002 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,002 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-23 18:32:37,002 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-23 18:32:37,002 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-23 18:32:37,002 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-23 18:32:37,002 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-23 18:32:37,003 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-23 18:32:37,003 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,003 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,003 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,003 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,003 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-23 18:32:37,003 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,003 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-23 18:32:37,003 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-23 18:32:37,003 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-23 18:32:37,003 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-23 18:32:37,003 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-23 18:32:37,004 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-23 18:32:37,004 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-23 18:32:37,004 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-23 18:32:37,004 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-23 18:32:37,004 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-23 18:32:37,004 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-23 18:32:37,004 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-23 18:32:37,004 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-23 18:32:37,004 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,004 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,004 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,005 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,005 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,005 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-23 18:32:37,005 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-23 18:32:37,005 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-23 18:32:37,005 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-23 18:32:37,005 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-23 18:32:37,005 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-23 18:32:37,005 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-23 18:32:37,006 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-23 18:32:37,006 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,006 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,006 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse24 (= |old(~a20~0)| 1)) (.cse5 (= ~a7~0 |old(~a7~0)|)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse8 (= ~a16~0 |old(~a16~0)|)) (.cse19 (= ~a17~0 |old(~a17~0)|)) (.cse25 (= ~a21~0 1)) (.cse7 (= ~a20~0 |old(~a20~0)|)) (.cse9 (= ~a8~0 |old(~a8~0)|)) (.cse26 (= ~a16~0 4)) (.cse27 (= ~a7~0 0))) (let ((.cse11 (not (<= 14 |old(~a8~0)|))) (.cse23 (not (<= 5 |old(~a16~0)|))) (.cse3 (not (<= |old(~a17~0)| 0))) (.cse20 (and .cse19 .cse25 .cse7 .cse9 .cse26 .cse27)) (.cse16 (not (<= |old(~a16~0)| 5))) (.cse0 (not (= |old(~a7~0)| 1))) (.cse2 (and .cse5 .cse19 .cse6 .cse7 .cse8 .cse9)) (.cse10 (not (= |old(~a17~0)| 1))) (.cse1 (not .cse24)) (.cse17 (and .cse5 .cse19 .cse6 .cse7 .cse9 .cse26)) (.cse18 (not (= 4 |old(~a16~0)|))) (.cse15 (and .cse19 .cse25 .cse7 .cse8 .cse9 .cse27)) (.cse22 (not (<= 15 |old(~a8~0)|))) (.cse4 (not (<= 6 |old(~a16~0)|))) (.cse12 (not (= |old(~a21~0)| 1))) (.cse13 (not (= ~a12~0 8))) (.cse14 (not (= |old(~a7~0)| 0))) (.cse21 (not (= 0 |old(~a17~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 .cse6 .cse7 .cse8 .cse9 (= ~a17~0 1)) .cse10 .cse11 .cse1 .cse12 .cse13 .cse14) (or .cse10 .cse15 .cse1 .cse4 .cse12 .cse13 .cse14) (or .cse16 .cse0 .cse17 .cse18) (or .cse11 .cse16 .cse0 (and .cse19 .cse5 .cse6 .cse7 .cse8 .cse9) .cse3 .cse12) (or .cse11 .cse12 .cse20 .cse13 .cse18 .cse14 .cse21) (or .cse10 .cse15 .cse22 .cse12 .cse13 .cse14) (or .cse23 .cse24 .cse11 .cse15 .cse16 .cse12 .cse13 .cse14 .cse21) (or .cse23 .cse15 .cse22 .cse1 .cse3 .cse12 .cse13 .cse14) (or .cse1 .cse3 .cse12 .cse18 .cse20 .cse13 .cse14) (or .cse10 .cse16 .cse0 .cse1 .cse2) (or (not (= |old(~a8~0)| 13)) (and .cse19 .cse25 .cse7 (= ~a8~0 13) .cse26 .cse27) .cse12 .cse13 .cse14 .cse18 .cse21) (or .cse10 .cse1 .cse17 .cse18) (or .cse15 .cse22 .cse4 .cse12 .cse13 .cse14 .cse21)))) [2020-10-23 18:32:37,006 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,007 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,007 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,007 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-23 18:32:37,007 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-23 18:32:37,007 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-23 18:32:37,007 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-23 18:32:37,007 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-23 18:32:37,007 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-23 18:32:37,007 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-23 18:32:37,007 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-23 18:32:37,008 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-23 18:32:37,008 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-23 18:32:37,008 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-23 18:32:37,008 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,008 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,008 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,008 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,008 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-23 18:32:37,008 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,008 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,009 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-23 18:32:37,009 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-23 18:32:37,009 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-23 18:32:37,009 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-23 18:32:37,009 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-23 18:32:37,009 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-23 18:32:37,009 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-23 18:32:37,009 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-23 18:32:37,009 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-23 18:32:37,009 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-23 18:32:37,010 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-23 18:32:37,010 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-23 18:32:37,010 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,010 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,010 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,010 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,010 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,010 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-23 18:32:37,010 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:37,010 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-23 18:32:37,010 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-23 18:32:37,011 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-23 18:32:37,011 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-23 18:32:37,011 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-23 18:32:37,011 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-23 18:32:37,011 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-23 18:32:37,011 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-23 18:32:37,011 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-23 18:32:37,011 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-23 18:32:37,011 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-23 18:32:37,011 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-23 18:32:37,011 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-23 18:32:37,012 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-23 18:32:37,012 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:32:37,012 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a16~0 5) (= ~a12~0 8) (= ~a20~0 1) (<= 5 ~a16~0) (= ~a7~0 0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-23 18:32:37,012 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:32:37,012 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:32:37,012 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= 5 |old(~a16~0)|)) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a7~0 0)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-23 18:32:37,012 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-23 18:32:37,013 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse5 (= ~a20~0 1))) (let ((.cse8 (<= 5 ~a16~0)) (.cse4 (<= ~a17~0 0)) (.cse12 (not .cse5)) (.cse9 (<= 15 ~a8~0)) (.cse13 (<= 6 ~a16~0)) (.cse3 (<= ~a16~0 5)) (.cse11 (= ~a17~0 1)) (.cse0 (<= 14 ~a8~0)) (.cse2 (= ~a21~0 1)) (.cse7 (= ~a7~0 0)) (.cse10 (= ~a17~0 0)) (.cse1 (= ~a7~0 1)) (.cse6 (= ~a16~0 4))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse2 .cse4 .cse5 .cse6 .cse7) (and .cse2 .cse8 .cse9 .cse7 .cse10) (and .cse5 .cse6 .cse11) (not (= |old(~a20~0)| 1)) (and .cse2 .cse4 .cse5 .cse8 .cse9 .cse7) (not (= |old(~a21~0)| 1)) (and .cse0 .cse2 .cse3 .cse8 .cse12 .cse7 .cse10) (and .cse2 (= ~a8~0 13) .cse6 .cse7 .cse10) (and .cse13 .cse1 .cse4 .cse5) (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse2 .cse12 .cse9 .cse11 .cse7) (and .cse13 .cse2 .cse5 .cse11 .cse7) (and .cse1 .cse3 .cse5 .cse11) (and (= ~a17~0 |old(~a17~0)|) .cse2 (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) .cse7) (and .cse0 .cse2 .cse6 .cse7 .cse10) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse1 .cse6)))) [2020-10-23 18:32:37,013 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-23 18:32:37,013 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-23 18:32:37,014 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse5 (= ~a20~0 1))) (let ((.cse8 (<= 5 ~a16~0)) (.cse4 (<= ~a17~0 0)) (.cse12 (not .cse5)) (.cse9 (<= 15 ~a8~0)) (.cse13 (<= 6 ~a16~0)) (.cse3 (<= ~a16~0 5)) (.cse11 (= ~a17~0 1)) (.cse0 (<= 14 ~a8~0)) (.cse2 (= ~a21~0 1)) (.cse7 (= ~a7~0 0)) (.cse10 (= ~a17~0 0)) (.cse1 (= ~a7~0 1)) (.cse6 (= ~a16~0 4))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse2 .cse4 .cse5 .cse6 .cse7) (and .cse2 .cse8 .cse9 .cse7 .cse10) (and .cse5 .cse6 .cse11) (not (= |old(~a20~0)| 1)) (and .cse2 .cse4 .cse5 .cse8 .cse9 .cse7) (not (= |old(~a21~0)| 1)) (and .cse0 .cse2 .cse3 .cse8 .cse12 .cse7 .cse10) (and .cse2 (= ~a8~0 13) .cse6 .cse7 .cse10) (and .cse13 .cse1 .cse4 .cse5) (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse2 .cse12 .cse9 .cse11 .cse7) (and .cse13 .cse2 .cse5 .cse11 .cse7) (and .cse1 .cse3 .cse5 .cse11) (and (= ~a17~0 |old(~a17~0)|) .cse2 (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) .cse7) (and .cse0 .cse2 .cse6 .cse7 .cse10) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse1 .cse6)))) [2020-10-23 18:32:37,014 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-23 18:32:37,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:32:37 BoogieIcfgContainer [2020-10-23 18:32:37,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:32:37,041 INFO L168 Benchmark]: Toolchain (without parser) took 63847.96 ms. Allocated memory was 151.0 MB in the beginning and 383.8 MB in the end (delta: 232.8 MB). Free memory was 124.5 MB in the beginning and 311.7 MB in the end (delta: -187.2 MB). Peak memory consumption was 231.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:32:37,041 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:32:37,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.25 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 128.2 MB in the end (delta: -4.3 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:32:37,043 INFO L168 Benchmark]: Boogie Preprocessor took 120.34 ms. Allocated memory is still 151.0 MB. Free memory was 128.2 MB in the beginning and 123.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:32:37,043 INFO L168 Benchmark]: RCFGBuilder took 1964.43 ms. Allocated memory is still 151.0 MB. Free memory was 123.0 MB in the beginning and 95.3 MB in the end (delta: 27.7 MB). Peak memory consumption was 73.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:32:37,044 INFO L168 Benchmark]: TraceAbstraction took 61048.24 ms. Allocated memory was 151.0 MB in the beginning and 383.8 MB in the end (delta: 232.8 MB). Free memory was 94.8 MB in the beginning and 311.7 MB in the end (delta: -217.0 MB). Peak memory consumption was 201.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:32:37,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 700.25 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 128.2 MB in the end (delta: -4.3 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 120.34 ms. Allocated memory is still 151.0 MB. Free memory was 128.2 MB in the beginning and 123.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1964.43 ms. Allocated memory is still 151.0 MB. Free memory was 123.0 MB in the beginning and 95.3 MB in the end (delta: 27.7 MB). Peak memory consumption was 73.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 61048.24 ms. Allocated memory was 151.0 MB in the beginning and 383.8 MB in the end (delta: 232.8 MB). Free memory was 94.8 MB in the beginning and 311.7 MB in the end (delta: -217.0 MB). Peak memory consumption was 201.4 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: 585]: Loop Invariant Derived loop invariant: ((((((((((((((((((((!(5 <= \old(a16)) || ((((14 <= a8 && a7 == 1) && a21 == 1) && a16 <= 5) && a17 <= 0)) || ((((a21 == 1 && a17 <= 0) && a20 == 1) && a16 == 4) && a7 == 0)) || ((((a21 == 1 && 5 <= a16) && 15 <= a8) && a7 == 0) && a17 == 0)) || ((a20 == 1 && a16 == 4) && a17 == 1)) || !(\old(a20) == 1)) || (((((a21 == 1 && a17 <= 0) && a20 == 1) && 5 <= a16) && 15 <= a8) && a7 == 0)) || !(\old(a21) == 1)) || ((((((14 <= a8 && a21 == 1) && a16 <= 5) && 5 <= a16) && !(a20 == 1)) && a7 == 0) && a17 == 0)) || ((((a21 == 1 && a8 == 13) && a16 == 4) && a7 == 0) && a17 == 0)) || (((6 <= a16 && a7 == 1) && a17 <= 0) && a20 == 1)) || !(\old(a17) == 1)) || !(\old(a16) <= 5)) || !(15 <= \old(a8))) || ((((a21 == 1 && !(a20 == 1)) && 15 <= a8) && a17 == 1) && a7 == 0)) || ((((6 <= a16 && a21 == 1) && a20 == 1) && a17 == 1) && a7 == 0)) || (((a7 == 1 && a16 <= 5) && a20 == 1) && a17 == 1)) || ((((a17 == \old(a17) && a21 == 1) && a16 == \old(a16)) && a8 == \old(a8)) && a7 == 0)) || ((((14 <= a8 && a21 == 1) && a16 == 4) && a7 == 0) && a17 == 0)) || !(\old(a7) == 0)) || !(a12 == 8)) || (a7 == 1 && a16 == 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 48.2s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 37.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 598 SDtfs, 5085 SDslu, 549 SDs, 0 SdLazy, 10986 SolverSat, 1804 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1275 GetRequests, 1122 SyntacticMatches, 2 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2952occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 1907 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 343 PreInvPairs, 429 NumberOfFragments, 1555 HoareAnnotationTreeSize, 343 FomulaSimplifications, 168924 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 9 FomulaSimplificationsInter, 8670 FormulaSimplificationTreeSizeReductionInter, 10.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 2495 NumberOfCodeBlocks, 2495 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2477 ConstructedInterpolants, 0 QuantifiedInterpolants, 1438093 SizeOfPredicates, 8 NumberOfNonLiveVariables, 3623 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 946/1058 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...