/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:12:16,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:12:16,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:12:16,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 18:12:16,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:12:16,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:12:16,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:12:16,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:12:16,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:12:16,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:12:16,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:12:16,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:12:16,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:12:16,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:12:16,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:12:16,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:12:16,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 18:12:16,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:12:16,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:12:16,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:12:16,268 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:12:16,290 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:12:16,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:12:16,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:12:16,295 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:12:16,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:12:16,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:12:16,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:12:16,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:12:16,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:12:16,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:12:16,297 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:12:16,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:12:16,297 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:12:16,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:12:16,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:12:16,298 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:12:16,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:12:16,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:12:16,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:12:16,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:12:16,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:12:16,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:12:16,299 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:12:16,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:12:16,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:12:16,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:12:16,714 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:12:16,715 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:12:16,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label38.c [2021-02-23 18:12:16,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3c065c70/76a31807ae7640adbea97d0eaf4248e9/FLAG9e1f926bb [2021-02-23 18:12:17,525 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:12:17,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label38.c [2021-02-23 18:12:17,541 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3c065c70/76a31807ae7640adbea97d0eaf4248e9/FLAG9e1f926bb [2021-02-23 18:12:17,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3c065c70/76a31807ae7640adbea97d0eaf4248e9 [2021-02-23 18:12:17,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:12:17,722 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:12:17,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:12:17,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:12:17,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:12:17,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:12:17" (1/1) ... [2021-02-23 18:12:17,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a0bc64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:12:17, skipping insertion in model container [2021-02-23 18:12:17,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:12:17" (1/1) ... [2021-02-23 18:12:17,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:12:17,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:12:18,171 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label38.c[15751,15764] [2021-02-23 18:12:18,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:12:18,245 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:12:18,329 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label38.c[15751,15764] [2021-02-23 18:12:18,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:12:18,424 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:12:18,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:12:18 WrapperNode [2021-02-23 18:12:18,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:12:18,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:12:18,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:12:18,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:12:18,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:12:18" (1/1) ... [2021-02-23 18:12:18,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:12:18" (1/1) ... [2021-02-23 18:12:18,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:12:18" (1/1) ... [2021-02-23 18:12:18,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:12:18" (1/1) ... [2021-02-23 18:12:18,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:12:18" (1/1) ... [2021-02-23 18:12:18,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:12:18" (1/1) ... [2021-02-23 18:12:18,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:12:18" (1/1) ... [2021-02-23 18:12:18,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:12:18,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:12:18,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:12:18,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:12:18,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:12:18" (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 [2021-02-23 18:12:18,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:12:18,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:12:18,643 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:12:18,644 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-23 18:12:18,644 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:12:18,644 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-23 18:12:18,644 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:12:18,645 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:12:18,645 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:12:18,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:12:18,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 18:12:18,646 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 18:12:18,646 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:12:18,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:12:18,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:12:18,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:12:18,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:12:18,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:12:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:12:20,578 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:12:20,578 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 18:12:20,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:12:20 BoogieIcfgContainer [2021-02-23 18:12:20,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:12:20,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:12:20,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:12:20,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:12:20,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:12:17" (1/3) ... [2021-02-23 18:12:20,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53581e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:12:20, skipping insertion in model container [2021-02-23 18:12:20,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:12:18" (2/3) ... [2021-02-23 18:12:20,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53581e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:12:20, skipping insertion in model container [2021-02-23 18:12:20,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:12:20" (3/3) ... [2021-02-23 18:12:20,590 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label38.c [2021-02-23 18:12:20,597 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:12:20,602 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:12:20,619 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:12:20,641 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:12:20,642 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:12:20,642 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:12:20,642 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:12:20,642 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:12:20,642 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:12:20,642 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:12:20,643 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:12:20,670 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states. [2021-02-23 18:12:20,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-02-23 18:12:20,694 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:12:20,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:12:20,696 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:12:20,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:12:20,703 INFO L82 PathProgramCache]: Analyzing trace with hash 537977830, now seen corresponding path program 1 times [2021-02-23 18:12:20,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:12:20,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162910179] [2021-02-23 18:12:20,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:12:20,785 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:12:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:12:21,141 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-23 18:12:21,142 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-23 18:12:21,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:21,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:12:21,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:21,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:12:21,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:21,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:12:21,316 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-23 18:12:21,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:12:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:12:21,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:21,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:12:21,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:21,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:12:21,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:12:21,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162910179] [2021-02-23 18:12:21,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:12:21,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 18:12:21,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696342413] [2021-02-23 18:12:21,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 18:12:21,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:12:21,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 18:12:21,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:12:21,454 INFO L87 Difference]: Start difference. First operand 534 states. Second operand 5 states. [2021-02-23 18:12:21,788 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-23 18:12:25,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:12:25,222 INFO L93 Difference]: Finished difference Result 1268 states and 1667 transitions. [2021-02-23 18:12:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 18:12:25,225 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2021-02-23 18:12:25,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:12:25,247 INFO L225 Difference]: With dead ends: 1268 [2021-02-23 18:12:25,247 INFO L226 Difference]: Without dead ends: 693 [2021-02-23 18:12:25,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-23 18:12:25,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-02-23 18:12:25,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 611. [2021-02-23 18:12:25,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2021-02-23 18:12:25,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 733 transitions. [2021-02-23 18:12:25,435 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 733 transitions. Word has length 118 [2021-02-23 18:12:25,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:12:25,436 INFO L480 AbstractCegarLoop]: Abstraction has 611 states and 733 transitions. [2021-02-23 18:12:25,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 18:12:25,436 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 733 transitions. [2021-02-23 18:12:25,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-02-23 18:12:25,447 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:12:25,447 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:12:25,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:12:25,448 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:12:25,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:12:25,449 INFO L82 PathProgramCache]: Analyzing trace with hash -2146582362, now seen corresponding path program 1 times [2021-02-23 18:12:25,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:12:25,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948552618] [2021-02-23 18:12:25,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:12:25,755 WARN L141 QuantifierPusher]: treesize reduction 12, result has 94.7 percent of original size [2021-02-23 18:12:25,791 WARN L147 QuantifierPusher]: treesize reduction 12, result has 94.7 percent of original size 214 [2021-02-23 18:12:26,011 WARN L141 QuantifierPusher]: treesize reduction 210, result has 50.5 percent of original size [2021-02-23 18:12:26,022 WARN L147 QuantifierPusher]: treesize reduction 210, result has 50.5 percent of original size 214 [2021-02-23 18:12:26,181 WARN L141 QuantifierPusher]: treesize reduction 210, result has 50.5 percent of original size [2021-02-23 18:12:26,194 WARN L147 QuantifierPusher]: treesize reduction 210, result has 50.5 percent of original size 214 [2021-02-23 18:12:26,359 WARN L141 QuantifierPusher]: treesize reduction 210, result has 50.5 percent of original size [2021-02-23 18:12:26,368 WARN L147 QuantifierPusher]: treesize reduction 210, result has 50.5 percent of original size 214 [2021-02-23 18:12:26,370 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 18:12:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:12:26,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:26,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:12:26,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:26,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:12:26,746 WARN L141 QuantifierPusher]: treesize reduction 45, result has 45.8 percent of original size [2021-02-23 18:12:26,748 WARN L147 QuantifierPusher]: treesize reduction 45, result has 45.8 percent of original size 38 [2021-02-23 18:12:26,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:26,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-23 18:12:26,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:26,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:12:26,800 WARN L141 QuantifierPusher]: treesize reduction 15, result has 42.3 percent of original size [2021-02-23 18:12:26,801 WARN L147 QuantifierPusher]: treesize reduction 15, result has 42.3 percent of original size 11 [2021-02-23 18:12:26,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:26,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:12:26,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:26,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:12:26,970 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-23 18:12:26,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:12:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:12:26,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:26,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:12:26,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:26,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:12:26,996 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 18:12:26,998 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 18:12:27,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:12:27,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:12:27,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:12:27,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:12:27,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-02-23 18:12:27,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-02-23 18:12:27,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-02-23 18:12:27,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-02-23 18:12:27,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-02-23 18:12:27,372 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 112 [2021-02-23 18:12:27,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-02-23 18:12:27,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-02-23 18:12:27,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-02-23 18:12:27,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-02-23 18:12:27,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 307 [2021-02-23 18:12:27,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-02-23 18:12:27,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-02-23 18:12:27,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 316 [2021-02-23 18:12:27,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-02-23 18:12:27,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-02-23 18:12:27,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-02-23 18:12:27,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-02-23 18:12:27,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-02-23 18:12:27,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 304 [2021-02-23 18:12:27,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-02-23 18:12:27,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:27,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:27,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:27,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 304 [2021-02-23 18:12:27,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 333 [2021-02-23 18:12:28,182 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2021-02-23 18:12:28,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:28,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:28,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:28,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:28,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:28,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 304 [2021-02-23 18:12:28,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-02-23 18:12:28,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:28,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:28,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:28,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:28,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:28,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 304 [2021-02-23 18:12:28,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 329 [2021-02-23 18:12:28,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:28,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:28,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:28,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:28,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:28,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 304 [2021-02-23 18:12:28,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-02-23 18:12:28,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:28,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:28,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:28,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:28,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:28,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:28,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 304 [2021-02-23 18:12:28,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-02-23 18:12:29,049 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 142 [2021-02-23 18:12:29,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:29,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:29,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:29,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:29,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:29,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:29,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:29,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:29,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:29,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 304 [2021-02-23 18:12:29,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 408 [2021-02-23 18:12:29,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:29,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:29,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:29,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:29,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:29,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:29,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:29,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:29,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:29,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 304 [2021-02-23 18:12:29,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-02-23 18:12:29,632 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 145 [2021-02-23 18:12:29,645 WARN L141 QuantifierPusher]: treesize reduction 63, result has 84.7 percent of original size [2021-02-23 18:12:29,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:29,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:29,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:29,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:29,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:29,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:12:29,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:29,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:12:29,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-02-23 18:12:29,662 WARN L147 QuantifierPusher]: treesize reduction 63, result has 84.7 percent of original size 348 [2021-02-23 18:12:29,870 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 123 [2021-02-23 18:12:29,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:29,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 329 [2021-02-23 18:12:30,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:30,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-23 18:12:30,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:30,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-23 18:12:30,256 WARN L141 QuantifierPusher]: treesize reduction -2, result has 106.5 percent of original size [2021-02-23 18:12:30,259 WARN L147 QuantifierPusher]: treesize reduction -2, result has 106.5 percent of original size 33 [2021-02-23 18:12:30,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:30,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-23 18:12:30,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:30,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-23 18:12:30,478 WARN L141 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size [2021-02-23 18:12:30,479 WARN L147 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size 30 [2021-02-23 18:12:30,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:30,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-23 18:12:30,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:30,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-23 18:12:30,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:12:30,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:12:30,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948552618] [2021-02-23 18:12:30,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:12:30,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-02-23 18:12:30,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953293527] [2021-02-23 18:12:30,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-23 18:12:30,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:12:30,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-23 18:12:30,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2021-02-23 18:12:30,732 INFO L87 Difference]: Start difference. First operand 611 states and 733 transitions. Second operand 23 states. [2021-02-23 18:12:31,161 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 18:12:31,682 WARN L202 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 98 [2021-02-23 18:12:32,197 WARN L202 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 100 [2021-02-23 18:12:32,719 WARN L202 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2021-02-23 18:12:33,258 WARN L202 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 203 [2021-02-23 18:12:33,821 WARN L202 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 203 [2021-02-23 18:12:34,387 WARN L202 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 205 [2021-02-23 18:12:35,057 WARN L202 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 222 [2021-02-23 18:12:36,095 WARN L202 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 225 [2021-02-23 18:12:36,328 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 45 [2021-02-23 18:12:36,704 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2021-02-23 18:12:37,083 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 48 [2021-02-23 18:12:38,706 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2021-02-23 18:12:38,937 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-23 18:12:39,272 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 18:12:39,713 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-02-23 18:12:40,318 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-23 18:12:51,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:12:51,454 INFO L93 Difference]: Finished difference Result 2036 states and 2644 transitions. [2021-02-23 18:12:51,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-02-23 18:12:51,455 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 139 [2021-02-23 18:12:51,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:12:51,467 INFO L225 Difference]: With dead ends: 2036 [2021-02-23 18:12:51,468 INFO L226 Difference]: Without dead ends: 1457 [2021-02-23 18:12:51,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=431, Invalid=1731, Unknown=0, NotChecked=0, Total=2162 [2021-02-23 18:12:51,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2021-02-23 18:12:51,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1076. [2021-02-23 18:12:51,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1076 states. [2021-02-23 18:12:51,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1336 transitions. [2021-02-23 18:12:51,818 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1336 transitions. Word has length 139 [2021-02-23 18:12:51,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:12:51,819 INFO L480 AbstractCegarLoop]: Abstraction has 1076 states and 1336 transitions. [2021-02-23 18:12:51,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2021-02-23 18:12:51,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1336 transitions. [2021-02-23 18:12:51,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-02-23 18:12:51,825 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:12:51,826 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:12:51,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:12:51,826 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:12:51,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:12:51,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1821871817, now seen corresponding path program 1 times [2021-02-23 18:12:51,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:12:51,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853181471] [2021-02-23 18:12:51,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:12:51,889 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18