/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:18:06,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:18:06,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:18:06,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 00:18:06,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 00:18:06,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 00:18:06,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 00:18:06,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 00:18:06,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 00:18:06,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 00:18:06,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 00:18:06,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 00:18:06,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 00:18:06,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 00:18:06,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 00:18:06,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 00:18:06,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 00:18:06,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 00:18:06,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 00:18:06,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 00:18:06,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 00:18:06,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 00:18:06,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 00:18:06,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 00:18:06,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 00:18:06,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 00:18:06,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 00:18:06,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 00:18:06,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 00:18:06,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 00:18:06,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 00:18:06,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 00:18:06,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 00:18:06,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 00:18:06,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 00:18:06,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 00:18:06,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 00:18:06,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 00:18:06,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 00:18:06,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 00:18:06,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 00:18:06,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-24 00:18:06,653 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:18:06,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:18:06,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:18:06,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:18:06,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:18:06,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:18:06,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:18:06,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:18:06,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:18:06,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:18:06,664 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:18:06,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:18:06,664 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:18:06,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:18:06,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:18:06,665 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:18:06,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:18:06,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:18:06,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:18:06,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:18:06,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:18:06,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:18:06,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:18:07,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:18:07,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:18:07,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:18:07,175 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:18:07,178 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:18:07,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2021-02-24 00:18:07,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dba216f9b/3373d6c89ce3479aada561548125e6e3/FLAGbe947e14c [2021-02-24 00:18:07,811 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:18:07,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2021-02-24 00:18:07,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dba216f9b/3373d6c89ce3479aada561548125e6e3/FLAGbe947e14c [2021-02-24 00:18:08,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dba216f9b/3373d6c89ce3479aada561548125e6e3 [2021-02-24 00:18:08,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:18:08,195 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:18:08,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:18:08,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:18:08,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:18:08,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:18:08" (1/1) ... [2021-02-24 00:18:08,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58874421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:08, skipping insertion in model container [2021-02-24 00:18:08,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:18:08" (1/1) ... [2021-02-24 00:18:08,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:18:08,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:18:08,392 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i[893,906] [2021-02-24 00:18:08,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:18:08,427 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:18:08,443 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i[893,906] [2021-02-24 00:18:08,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:18:08,476 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:18:08,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:08 WrapperNode [2021-02-24 00:18:08,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:18:08,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:18:08,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:18:08,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:18:08,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:08" (1/1) ... [2021-02-24 00:18:08,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:08" (1/1) ... [2021-02-24 00:18:08,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:08" (1/1) ... [2021-02-24 00:18:08,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:08" (1/1) ... [2021-02-24 00:18:08,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:08" (1/1) ... [2021-02-24 00:18:08,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:08" (1/1) ... [2021-02-24 00:18:08,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:08" (1/1) ... [2021-02-24 00:18:08,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:18:08,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:18:08,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:18:08,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:18:08,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:08" (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 [2021-02-24 00:18:08,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:18:08,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:18:08,654 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:18:08,654 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 00:18:08,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 00:18:08,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:18:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:18:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:18:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 00:18:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 00:18:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:18:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:18:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 00:18:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 00:18:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 00:18:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:18:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:18:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:18:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:18:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:18:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:18:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:18:09,328 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:18:09,328 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-24 00:18:09,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:18:09 BoogieIcfgContainer [2021-02-24 00:18:09,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:18:09,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:18:09,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:18:09,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:18:09,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:18:08" (1/3) ... [2021-02-24 00:18:09,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc07483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:18:09, skipping insertion in model container [2021-02-24 00:18:09,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:08" (2/3) ... [2021-02-24 00:18:09,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc07483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:18:09, skipping insertion in model container [2021-02-24 00:18:09,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:18:09" (3/3) ... [2021-02-24 00:18:09,339 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i [2021-02-24 00:18:09,347 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:18:09,352 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:18:09,373 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:18:09,399 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:18:09,400 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:18:09,400 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:18:09,400 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:18:09,400 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:18:09,400 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:18:09,401 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:18:09,401 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:18:09,419 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2021-02-24 00:18:09,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-24 00:18:09,431 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:09,432 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] [2021-02-24 00:18:09,432 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:09,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:09,440 INFO L82 PathProgramCache]: Analyzing trace with hash 982526872, now seen corresponding path program 1 times [2021-02-24 00:18:09,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:09,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [196596331] [2021-02-24 00:18:09,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:09,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:09,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:09,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:09,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:09,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:09,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:09,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:10,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:18:10,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [196596331] [2021-02-24 00:18:10,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:10,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 00:18:10,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663456085] [2021-02-24 00:18:10,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 00:18:10,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:10,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 00:18:10,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:18:10,074 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 7 states. [2021-02-24 00:18:11,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:11,090 INFO L93 Difference]: Finished difference Result 186 states and 281 transitions. [2021-02-24 00:18:11,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 00:18:11,092 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2021-02-24 00:18:11,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:11,105 INFO L225 Difference]: With dead ends: 186 [2021-02-24 00:18:11,106 INFO L226 Difference]: Without dead ends: 110 [2021-02-24 00:18:11,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:18:11,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-02-24 00:18:11,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 100. [2021-02-24 00:18:11,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-02-24 00:18:11,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 123 transitions. [2021-02-24 00:18:11,199 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 123 transitions. Word has length 37 [2021-02-24 00:18:11,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:11,200 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 123 transitions. [2021-02-24 00:18:11,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 00:18:11,200 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 123 transitions. [2021-02-24 00:18:11,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-24 00:18:11,202 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:11,202 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-24 00:18:11,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:18:11,203 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:11,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:11,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1777685375, now seen corresponding path program 1 times [2021-02-24 00:18:11,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:11,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733244650] [2021-02-24 00:18:11,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,284 WARN L141 QuantifierPusher]: treesize reduction 6, result has 45.5 percent of original size [2021-02-24 00:18:11,284 WARN L147 QuantifierPusher]: treesize reduction 6, result has 45.5 percent of original size 5 [2021-02-24 00:18:11,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:11,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:11,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:11,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:11,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:18:11,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733244650] [2021-02-24 00:18:11,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:11,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 00:18:11,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884783493] [2021-02-24 00:18:11,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:18:11,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:11,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:18:11,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:18:11,375 INFO L87 Difference]: Start difference. First operand 100 states and 123 transitions. Second operand 8 states. [2021-02-24 00:18:11,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:11,946 INFO L93 Difference]: Finished difference Result 106 states and 128 transitions. [2021-02-24 00:18:11,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-24 00:18:11,947 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2021-02-24 00:18:11,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:11,950 INFO L225 Difference]: With dead ends: 106 [2021-02-24 00:18:11,951 INFO L226 Difference]: Without dead ends: 104 [2021-02-24 00:18:11,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-02-24 00:18:11,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-24 00:18:11,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-02-24 00:18:11,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-24 00:18:11,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2021-02-24 00:18:11,982 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 42 [2021-02-24 00:18:11,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:11,982 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2021-02-24 00:18:11,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:18:11,983 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2021-02-24 00:18:11,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-02-24 00:18:11,985 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:11,985 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:11,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:18:11,986 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:11,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:11,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1379557309, now seen corresponding path program 1 times [2021-02-24 00:18:11,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:11,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52477064] [2021-02-24 00:18:11,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 00:18:12,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-24 00:18:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-02-24 00:18:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-24 00:18:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,125 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-02-24 00:18:12,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52477064] [2021-02-24 00:18:12,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:12,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 00:18:12,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162870387] [2021-02-24 00:18:12,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 00:18:12,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:12,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 00:18:12,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 00:18:12,129 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand 4 states. [2021-02-24 00:18:12,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:12,449 INFO L93 Difference]: Finished difference Result 147 states and 180 transitions. [2021-02-24 00:18:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 00:18:12,450 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2021-02-24 00:18:12,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:12,452 INFO L225 Difference]: With dead ends: 147 [2021-02-24 00:18:12,452 INFO L226 Difference]: Without dead ends: 104 [2021-02-24 00:18:12,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:18:12,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-24 00:18:12,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-02-24 00:18:12,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-24 00:18:12,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2021-02-24 00:18:12,480 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 72 [2021-02-24 00:18:12,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:12,481 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2021-02-24 00:18:12,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 00:18:12,481 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2021-02-24 00:18:12,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-02-24 00:18:12,483 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:12,483 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:12,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 00:18:12,484 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:12,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:12,484 INFO L82 PathProgramCache]: Analyzing trace with hash 302386887, now seen corresponding path program 1 times [2021-02-24 00:18:12,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:12,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118913833] [2021-02-24 00:18:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:12,555 WARN L141 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size [2021-02-24 00:18:12,555 WARN L147 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size 3 [2021-02-24 00:18:12,562 WARN L141 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-02-24 00:18:12,563 WARN L147 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size 10 [2021-02-24 00:18:12,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:12,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:12,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-24 00:18:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-24 00:18:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-24 00:18:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,726 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-02-24 00:18:12,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118913833] [2021-02-24 00:18:12,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:12,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 00:18:12,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759805417] [2021-02-24 00:18:12,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:18:12,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:12,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:18:12,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:18:12,731 INFO L87 Difference]: Start difference. First operand 104 states and 124 transitions. Second operand 8 states. [2021-02-24 00:18:13,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:13,335 INFO L93 Difference]: Finished difference Result 110 states and 129 transitions. [2021-02-24 00:18:13,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-24 00:18:13,335 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2021-02-24 00:18:13,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:13,337 INFO L225 Difference]: With dead ends: 110 [2021-02-24 00:18:13,337 INFO L226 Difference]: Without dead ends: 108 [2021-02-24 00:18:13,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-02-24 00:18:13,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-02-24 00:18:13,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-02-24 00:18:13,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2021-02-24 00:18:13,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 127 transitions. [2021-02-24 00:18:13,364 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 127 transitions. Word has length 75 [2021-02-24 00:18:13,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:13,365 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 127 transitions. [2021-02-24 00:18:13,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:18:13,365 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 127 transitions. [2021-02-24 00:18:13,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-02-24 00:18:13,367 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:13,368 INFO L422 BasicCegarLoop]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:13,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 00:18:13,368 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:13,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:13,369 INFO L82 PathProgramCache]: Analyzing trace with hash 255736435, now seen corresponding path program 1 times [2021-02-24 00:18:13,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:13,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208830401] [2021-02-24 00:18:13,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:13,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:13,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:13,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:13,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-24 00:18:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-24 00:18:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-24 00:18:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-02-24 00:18:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-02-24 00:18:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-02-24 00:18:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 00:18:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-24 00:18:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-02-24 00:18:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,610 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-02-24 00:18:13,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208830401] [2021-02-24 00:18:13,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:13,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 00:18:13,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308701326] [2021-02-24 00:18:13,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 00:18:13,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:13,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 00:18:13,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:18:13,613 INFO L87 Difference]: Start difference. First operand 108 states and 127 transitions. Second operand 7 states. [2021-02-24 00:18:14,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:14,105 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2021-02-24 00:18:14,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 00:18:14,106 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2021-02-24 00:18:14,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:14,108 INFO L225 Difference]: With dead ends: 119 [2021-02-24 00:18:14,108 INFO L226 Difference]: Without dead ends: 117 [2021-02-24 00:18:14,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:18:14,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-02-24 00:18:14,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2021-02-24 00:18:14,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2021-02-24 00:18:14,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2021-02-24 00:18:14,134 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 121 [2021-02-24 00:18:14,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:14,135 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2021-02-24 00:18:14,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 00:18:14,135 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2021-02-24 00:18:14,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-02-24 00:18:14,138 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:14,138 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:14,138 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 00:18:14,139 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:14,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:14,139 INFO L82 PathProgramCache]: Analyzing trace with hash -649987322, now seen corresponding path program 1 times [2021-02-24 00:18:14,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:14,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058379951] [2021-02-24 00:18:14,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:14,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:14,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:14,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:14,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-24 00:18:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-24 00:18:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-24 00:18:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-02-24 00:18:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-02-24 00:18:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-02-24 00:18:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 00:18:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-24 00:18:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-02-24 00:18:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-02-24 00:18:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,331 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-02-24 00:18:14,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058379951] [2021-02-24 00:18:14,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:14,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 00:18:14,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206709934] [2021-02-24 00:18:14,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 00:18:14,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:14,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 00:18:14,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:18:14,336 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand 7 states. [2021-02-24 00:18:14,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:14,918 INFO L93 Difference]: Finished difference Result 124 states and 145 transitions. [2021-02-24 00:18:14,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 00:18:14,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 126 [2021-02-24 00:18:14,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:14,920 INFO L225 Difference]: With dead ends: 124 [2021-02-24 00:18:14,920 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 00:18:14,922 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:18:14,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 00:18:14,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 00:18:14,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 00:18:14,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 00:18:14,923 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2021-02-24 00:18:14,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:14,923 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 00:18:14,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 00:18:14,923 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 00:18:14,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 00:18:14,924 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 00:18:14,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 00:18:15,746 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-24 00:18:15,874 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-24 00:18:15,991 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-24 00:18:16,541 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-24 00:18:17,290 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-24 00:18:17,502 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-24 00:18:17,756 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-24 00:18:17,964 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-24 00:18:18,245 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-24 00:18:18,245 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-24 00:18:18,246 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-24 00:18:18,246 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-02-24 00:18:18,246 INFO L189 CegarLoopUtils]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-02-24 00:18:18,246 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:18:18,246 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 00:18:18,246 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2021-02-24 00:18:18,246 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-24 00:18:18,246 INFO L192 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: true [2021-02-24 00:18:18,247 INFO L192 CegarLoopUtils]: At program point L12-2(line 12) the Hoare annotation is: true [2021-02-24 00:18:18,247 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-02-24 00:18:18,247 INFO L192 CegarLoopUtils]: At program point L12-3(line 12) the Hoare annotation is: true [2021-02-24 00:18:18,247 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:18:18,247 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:18:18,247 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:18:18,247 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 00:18:18,248 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 00:18:18,248 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-02-24 00:18:18,248 INFO L189 CegarLoopUtils]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-02-24 00:18:18,248 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-02-24 00:18:18,248 INFO L189 CegarLoopUtils]: For program point L15-3(lines 14 16) no Hoare annotation was computed. [2021-02-24 00:18:18,248 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-02-24 00:18:18,248 INFO L185 CegarLoopUtils]: At program point L60(line 60) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,249 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-24 00:18:18,249 INFO L192 CegarLoopUtils]: At program point L27-1(line 27) the Hoare annotation is: true [2021-02-24 00:18:18,249 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 24 83) the Hoare annotation is: true [2021-02-24 00:18:18,249 INFO L185 CegarLoopUtils]: At program point L44(lines 44 80) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,249 INFO L185 CegarLoopUtils]: At program point L44-1(line 44) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,249 INFO L185 CegarLoopUtils]: At program point L44-3(line 44) the Hoare annotation is: (and (<= (+ main_~cp~0 1) main_~urilen~0) (<= (+ main_~scheme~0 1) main_~urilen~0)) [2021-02-24 00:18:18,250 INFO L185 CegarLoopUtils]: At program point L69(lines 69 75) the Hoare annotation is: (let ((.cse0 (< 0 main_~scheme~0)) (.cse1 (<= 1 main_~cp~0)) (.cse2 (<= (+ main_~c~0 2) main_~tokenlen~0)) (.cse3 (<= (+ main_~scheme~0 1) main_~urilen~0)) (.cse4 (not (= (+ main_~cp~0 1) main_~urilen~0))) (.cse5 (< main_~cp~0 main_~urilen~0))) (or (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= 1 main_~c~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2021-02-24 00:18:18,250 INFO L192 CegarLoopUtils]: At program point L36(lines 25 83) the Hoare annotation is: true [2021-02-24 00:18:18,250 INFO L185 CegarLoopUtils]: At program point L69-1(line 69) the Hoare annotation is: (let ((.cse0 (< 0 main_~scheme~0)) (.cse1 (<= 1 main_~cp~0)) (.cse2 (<= (+ main_~c~0 2) main_~tokenlen~0)) (.cse3 (<= (+ main_~scheme~0 1) main_~urilen~0)) (.cse4 (not (= (+ main_~cp~0 1) main_~urilen~0))) (.cse5 (< main_~cp~0 main_~urilen~0))) (or (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= 1 main_~c~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2021-02-24 00:18:18,250 INFO L185 CegarLoopUtils]: At program point L69-2(line 69) the Hoare annotation is: (let ((.cse0 (< 0 main_~scheme~0)) (.cse1 (<= 1 main_~cp~0)) (.cse2 (<= (+ main_~c~0 2) main_~tokenlen~0)) (.cse3 (<= (+ main_~scheme~0 1) main_~urilen~0)) (.cse4 (not (= (+ main_~cp~0 1) main_~urilen~0))) (.cse5 (< main_~cp~0 main_~urilen~0))) (or (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= 1 main_~c~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2021-02-24 00:18:18,251 INFO L185 CegarLoopUtils]: At program point L69-3(lines 69 75) the Hoare annotation is: (let ((.cse0 (< 0 main_~scheme~0)) (.cse1 (<= 1 main_~cp~0)) (.cse2 (<= (+ main_~scheme~0 1) main_~urilen~0)) (.cse3 (<= (+ main_~c~0 1) main_~tokenlen~0)) (.cse4 (not (= (+ main_~cp~0 1) main_~urilen~0))) (.cse5 (< main_~cp~0 main_~urilen~0))) (or (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= 1 main_~c~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2021-02-24 00:18:18,251 INFO L185 CegarLoopUtils]: At program point L61(line 61) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,251 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-24 00:18:18,251 INFO L185 CegarLoopUtils]: At program point L61-1(lines 61 79) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,251 INFO L192 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: true [2021-02-24 00:18:18,251 INFO L185 CegarLoopUtils]: At program point L61-2(line 61) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,252 INFO L192 CegarLoopUtils]: At program point L61-3(line 61) the Hoare annotation is: true [2021-02-24 00:18:18,252 INFO L185 CegarLoopUtils]: At program point L53(line 53) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,252 INFO L185 CegarLoopUtils]: At program point L45(line 45) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,252 INFO L185 CegarLoopUtils]: At program point L45-1(line 45) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,252 INFO L185 CegarLoopUtils]: At program point L70(line 70) the Hoare annotation is: (let ((.cse0 (< 0 main_~scheme~0)) (.cse1 (<= 1 main_~cp~0)) (.cse2 (<= (+ main_~c~0 2) main_~tokenlen~0)) (.cse3 (<= (+ main_~scheme~0 1) main_~urilen~0)) (.cse4 (not (= (+ main_~cp~0 1) main_~urilen~0))) (.cse5 (< main_~cp~0 main_~urilen~0))) (or (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= 1 main_~c~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2021-02-24 00:18:18,252 INFO L185 CegarLoopUtils]: At program point L37(lines 25 83) the Hoare annotation is: (< 0 (+ main_~scheme~0 1)) [2021-02-24 00:18:18,253 INFO L185 CegarLoopUtils]: At program point L70-1(line 70) the Hoare annotation is: (let ((.cse0 (< 0 main_~scheme~0)) (.cse1 (<= 1 main_~cp~0)) (.cse2 (<= (+ main_~c~0 2) main_~tokenlen~0)) (.cse3 (<= (+ main_~scheme~0 1) main_~urilen~0)) (.cse4 (not (= (+ main_~cp~0 1) main_~urilen~0))) (.cse5 (< main_~cp~0 main_~urilen~0))) (or (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= 1 main_~c~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2021-02-24 00:18:18,253 INFO L185 CegarLoopUtils]: At program point L70-2(line 70) the Hoare annotation is: (and (<= 1 main_~c~0) (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,253 INFO L185 CegarLoopUtils]: At program point L62(line 62) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,253 INFO L192 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: true [2021-02-24 00:18:18,253 INFO L192 CegarLoopUtils]: At program point L29-1(line 29) the Hoare annotation is: true [2021-02-24 00:18:18,253 INFO L192 CegarLoopUtils]: At program point L29-2(line 29) the Hoare annotation is: true [2021-02-24 00:18:18,254 INFO L185 CegarLoopUtils]: At program point L54(lines 44 80) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,254 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 24 83) the Hoare annotation is: true [2021-02-24 00:18:18,254 INFO L185 CegarLoopUtils]: At program point L71(line 71) the Hoare annotation is: (and (<= 1 main_~c~0) (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,254 INFO L185 CegarLoopUtils]: At program point L71-1(line 71) the Hoare annotation is: (and (<= 1 main_~c~0) (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,254 INFO L185 CegarLoopUtils]: At program point L63(line 63) the Hoare annotation is: (and (< 0 main_~scheme~0) (= main_~c~0 0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,254 INFO L192 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: true [2021-02-24 00:18:18,254 INFO L185 CegarLoopUtils]: At program point L63-1(line 63) the Hoare annotation is: (and (< 0 main_~scheme~0) (= main_~c~0 0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,255 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 24 83) the Hoare annotation is: true [2021-02-24 00:18:18,255 INFO L192 CegarLoopUtils]: At program point L30-1(line 30) the Hoare annotation is: true [2021-02-24 00:18:18,255 INFO L192 CegarLoopUtils]: At program point L30-2(line 30) the Hoare annotation is: true [2021-02-24 00:18:18,255 INFO L185 CegarLoopUtils]: At program point L47-1(lines 46 52) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,255 INFO L185 CegarLoopUtils]: At program point L47-2(lines 47 52) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,255 INFO L185 CegarLoopUtils]: At program point L72(line 72) the Hoare annotation is: (and (<= 1 main_~c~0) (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,256 INFO L192 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: true [2021-02-24 00:18:18,256 INFO L192 CegarLoopUtils]: At program point L31-1(line 31) the Hoare annotation is: true [2021-02-24 00:18:18,256 INFO L192 CegarLoopUtils]: At program point L31-2(line 31) the Hoare annotation is: true [2021-02-24 00:18:18,256 INFO L185 CegarLoopUtils]: At program point L56(line 56) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,256 INFO L185 CegarLoopUtils]: At program point L56-1(line 56) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,256 INFO L192 CegarLoopUtils]: At program point L81(lines 25 83) the Hoare annotation is: true [2021-02-24 00:18:18,256 INFO L185 CegarLoopUtils]: At program point L48(line 48) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,257 INFO L185 CegarLoopUtils]: At program point L48-1(line 48) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,257 INFO L185 CegarLoopUtils]: At program point L48-2(line 48) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,257 INFO L185 CegarLoopUtils]: At program point L48-4(line 48) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,257 INFO L185 CegarLoopUtils]: At program point L73(line 73) the Hoare annotation is: (and (<= 1 main_~c~0) (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,257 INFO L192 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: true [2021-02-24 00:18:18,258 INFO L185 CegarLoopUtils]: At program point L65-1(lines 64 77) the Hoare annotation is: (let ((.cse0 (< 0 main_~scheme~0)) (.cse1 (<= 1 main_~cp~0)) (.cse2 (<= (+ main_~scheme~0 1) main_~urilen~0)) (.cse3 (< main_~cp~0 main_~urilen~0))) (or (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3) (and (<= 1 main_~c~0) .cse0 .cse1 .cse2 .cse3))) [2021-02-24 00:18:18,258 INFO L192 CegarLoopUtils]: At program point L32-1(line 32) the Hoare annotation is: true [2021-02-24 00:18:18,258 INFO L185 CegarLoopUtils]: At program point L57(lines 44 80) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,258 INFO L185 CegarLoopUtils]: At program point L49(line 49) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,258 INFO L185 CegarLoopUtils]: At program point L49-1(line 49) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,258 INFO L185 CegarLoopUtils]: At program point L41(line 41) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= (+ main_~scheme~0 1) main_~urilen~0)) [2021-02-24 00:18:18,259 INFO L192 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: true [2021-02-24 00:18:18,259 INFO L192 CegarLoopUtils]: At program point L33-1(line 33) the Hoare annotation is: true [2021-02-24 00:18:18,259 INFO L185 CegarLoopUtils]: At program point L50(line 50) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,259 INFO L185 CegarLoopUtils]: At program point L42(line 42) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,259 INFO L185 CegarLoopUtils]: At program point L42-1(line 42) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,259 INFO L185 CegarLoopUtils]: At program point L67(line 67) the Hoare annotation is: (let ((.cse0 (< 0 main_~scheme~0)) (.cse1 (<= 1 main_~cp~0)) (.cse2 (<= (+ main_~c~0 2) main_~tokenlen~0)) (.cse3 (<= (+ main_~scheme~0 1) main_~urilen~0)) (.cse4 (not (= (+ main_~cp~0 1) main_~urilen~0))) (.cse5 (< main_~cp~0 main_~urilen~0))) (or (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= 1 main_~c~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2021-02-24 00:18:18,259 INFO L192 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: true [2021-02-24 00:18:18,260 INFO L185 CegarLoopUtils]: At program point L67-1(line 67) the Hoare annotation is: (let ((.cse0 (< 0 main_~scheme~0)) (.cse1 (<= 1 main_~cp~0)) (.cse2 (<= (+ main_~c~0 2) main_~tokenlen~0)) (.cse3 (<= (+ main_~scheme~0 1) main_~urilen~0)) (.cse4 (not (= (+ main_~cp~0 1) main_~urilen~0))) (.cse5 (< main_~cp~0 main_~urilen~0))) (or (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= 1 main_~c~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2021-02-24 00:18:18,260 INFO L192 CegarLoopUtils]: At program point L34-1(line 34) the Hoare annotation is: true [2021-02-24 00:18:18,260 INFO L185 CegarLoopUtils]: At program point L59(line 59) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,260 INFO L185 CegarLoopUtils]: At program point L59-1(line 59) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,260 INFO L185 CegarLoopUtils]: At program point L59-2(line 59) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,261 INFO L185 CegarLoopUtils]: At program point L51(line 51) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,261 INFO L185 CegarLoopUtils]: At program point L51-1(line 51) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,261 INFO L185 CegarLoopUtils]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (< 0 main_~scheme~0)) (.cse1 (<= 1 main_~cp~0)) (.cse2 (<= (+ main_~scheme~0 1) main_~urilen~0)) (.cse3 (<= (+ main_~c~0 1) main_~tokenlen~0)) (.cse4 (not (= (+ main_~cp~0 1) main_~urilen~0))) (.cse5 (< main_~cp~0 main_~urilen~0))) (or (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= 1 main_~c~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2021-02-24 00:18:18,261 INFO L185 CegarLoopUtils]: At program point L43(line 43) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2021-02-24 00:18:18,261 INFO L185 CegarLoopUtils]: At program point L76-1(line 76) the Hoare annotation is: (let ((.cse0 (< 0 main_~scheme~0)) (.cse1 (<= 1 main_~cp~0)) (.cse2 (<= (+ main_~scheme~0 1) main_~urilen~0)) (.cse3 (<= (+ main_~c~0 1) main_~tokenlen~0)) (.cse4 (< main_~cp~0 main_~urilen~0))) (or (and (<= 1 main_~c~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3 .cse4))) [2021-02-24 00:18:18,262 INFO L185 CegarLoopUtils]: At program point L68(line 68) the Hoare annotation is: (let ((.cse0 (< 0 main_~scheme~0)) (.cse1 (<= 1 main_~cp~0)) (.cse2 (<= (+ main_~c~0 2) main_~tokenlen~0)) (.cse3 (<= (+ main_~scheme~0 1) main_~urilen~0)) (.cse4 (not (= (+ main_~cp~0 1) main_~urilen~0))) (.cse5 (< main_~cp~0 main_~urilen~0))) (or (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= 1 main_~c~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2021-02-24 00:18:18,262 INFO L192 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: true [2021-02-24 00:18:18,262 INFO L192 CegarLoopUtils]: At program point L35-1(lines 25 83) the Hoare annotation is: true [2021-02-24 00:18:18,262 INFO L185 CegarLoopUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:18:18,262 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-02-24 00:18:18,262 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:18:18,262 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:18:18,263 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:18:18,263 INFO L185 CegarLoopUtils]: At program point L18(lines 18 20) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:18:18,263 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:18:18,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:18:18 BoogieIcfgContainer [2021-02-24 00:18:18,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 00:18:18,285 INFO L168 Benchmark]: Toolchain (without parser) took 10101.51 ms. Allocated memory was 161.5 MB in the beginning and 292.6 MB in the end (delta: 131.1 MB). Free memory was 138.0 MB in the beginning and 160.2 MB in the end (delta: -22.2 MB). Peak memory consumption was 135.8 MB. Max. memory is 8.0 GB. [2021-02-24 00:18:18,286 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 161.5 MB. Free memory was 135.3 MB in the beginning and 135.2 MB in the end (delta: 77.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 00:18:18,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.94 ms. Allocated memory is still 161.5 MB. Free memory was 137.0 MB in the beginning and 126.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-24 00:18:18,287 INFO L168 Benchmark]: Boogie Preprocessor took 52.19 ms. Allocated memory is still 161.5 MB. Free memory was 126.4 MB in the beginning and 124.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 00:18:18,288 INFO L168 Benchmark]: RCFGBuilder took 798.91 ms. Allocated memory is still 161.5 MB. Free memory was 124.7 MB in the beginning and 133.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-24 00:18:18,288 INFO L168 Benchmark]: TraceAbstraction took 8952.18 ms. Allocated memory was 161.5 MB in the beginning and 292.6 MB in the end (delta: 131.1 MB). Free memory was 132.4 MB in the beginning and 160.2 MB in the end (delta: -27.7 MB). Peak memory consumption was 130.6 MB. Max. memory is 8.0 GB. [2021-02-24 00:18:18,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 161.5 MB. Free memory was 135.3 MB in the beginning and 135.2 MB in the end (delta: 77.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 277.94 ms. Allocated memory is still 161.5 MB. Free memory was 137.0 MB in the beginning and 126.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 52.19 ms. Allocated memory is still 161.5 MB. Free memory was 126.4 MB in the beginning and 124.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 798.91 ms. Allocated memory is still 161.5 MB. Free memory was 124.7 MB in the beginning and 133.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8952.18 ms. Allocated memory was 161.5 MB in the beginning and 292.6 MB in the end (delta: 131.1 MB). Free memory was 132.4 MB in the beginning and 160.2 MB in the end (delta: -27.7 MB). Peak memory consumption was 130.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((0 < scheme && 1 <= cp) && scheme + 1 <= urilen) && cp < urilen - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((0 < scheme && c == 0) && 1 <= cp) && scheme + 1 <= urilen) && cp < urilen) || ((((1 <= c && 0 < scheme) && 1 <= cp) && scheme + 1 <= urilen) && cp < urilen) - ProcedureContractResult [Line: 24]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 6, TraceHistogramMax: 14, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 533 SDtfs, 690 SDslu, 528 SDs, 0 SdLazy, 1730 SolverSat, 388 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 100 LocationsWithAnnotation, 450 PreInvPairs, 579 NumberOfFragments, 1521 HoareAnnotationTreeSize, 450 FomulaSimplifications, 1648 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 100 FomulaSimplificationsInter, 2776 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 473 NumberOfCodeBlocks, 473 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 467 ConstructedInterpolants, 0 QuantifiedInterpolants, 72365 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 772/772 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...