/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:52:36,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:52:37,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:52:37,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 18:52:37,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:52:37,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:52:37,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:52:37,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:52:37,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:52:37,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:52:37,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:52:37,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:52:37,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:52:37,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:52:37,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:52:37,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:52:37,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 18:52:37,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:52:37,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:52:37,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:52:37,180 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:52:37,195 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:52:37,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:52:37,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:52:37,200 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:52:37,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:52:37,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:52:37,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:52:37,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:52:37,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:52:37,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:52:37,202 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:52:37,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:52:37,202 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:52:37,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:52:37,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:52:37,203 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:52:37,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:52:37,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:52:37,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:52:37,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:52:37,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:52:37,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:52:37,205 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:52:37,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:52:37,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:52:37,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:52:37,725 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:52:37,726 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:52:37,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2021-02-23 18:52:37,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f7a5ce47/29479a0290b344daa2bdb734545ba4a8/FLAG914e087b3 [2021-02-23 18:52:38,537 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:52:38,538 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2021-02-23 18:52:38,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f7a5ce47/29479a0290b344daa2bdb734545ba4a8/FLAG914e087b3 [2021-02-23 18:52:38,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f7a5ce47/29479a0290b344daa2bdb734545ba4a8 [2021-02-23 18:52:38,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:52:38,914 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:52:38,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:52:38,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:52:38,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:52:38,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:52:38" (1/1) ... [2021-02-23 18:52:38,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15acbd72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:52:38, skipping insertion in model container [2021-02-23 18:52:38,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:52:38" (1/1) ... [2021-02-23 18:52:38,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:52:38,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:52:39,176 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] [2021-02-23 18:52:39,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:52:39,253 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:52:39,282 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] [2021-02-23 18:52:39,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:52:39,375 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:52:39,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:52:39 WrapperNode [2021-02-23 18:52:39,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:52:39,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:52:39,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:52:39,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:52:39,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:52:39" (1/1) ... [2021-02-23 18:52:39,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:52:39" (1/1) ... [2021-02-23 18:52:39,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:52:39" (1/1) ... [2021-02-23 18:52:39,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:52:39" (1/1) ... [2021-02-23 18:52:39,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:52:39" (1/1) ... [2021-02-23 18:52:39,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:52:39" (1/1) ... [2021-02-23 18:52:39,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:52:39" (1/1) ... [2021-02-23 18:52:39,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:52:39,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:52:39,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:52:39,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:52:39,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:52:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:52:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:52:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:52:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:52:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-23 18:52:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 18:52:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:52:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:52:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:52:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-23 18:52:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-23 18:52:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:52:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:52:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-23 18:52:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 18:52:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 18:52:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:52:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:52:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:52:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:52:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:52:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:52:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:52:40,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:52:40,306 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-23 18:52:40,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:52:40 BoogieIcfgContainer [2021-02-23 18:52:40,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:52:40,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:52:40,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:52:40,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:52:40,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:52:38" (1/3) ... [2021-02-23 18:52:40,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650388c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:52:40, skipping insertion in model container [2021-02-23 18:52:40,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:52:39" (2/3) ... [2021-02-23 18:52:40,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650388c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:52:40, skipping insertion in model container [2021-02-23 18:52:40,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:52:40" (3/3) ... [2021-02-23 18:52:40,328 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i [2021-02-23 18:52:40,338 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:52:40,344 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:52:40,367 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:52:40,404 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:52:40,405 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:52:40,405 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:52:40,405 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:52:40,405 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:52:40,406 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:52:40,406 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:52:40,406 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:52:40,432 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2021-02-23 18:52:40,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-23 18:52:40,447 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:52:40,448 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] [2021-02-23 18:52:40,448 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:52:40,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:52:40,458 INFO L82 PathProgramCache]: Analyzing trace with hash 982526872, now seen corresponding path program 1 times [2021-02-23 18:52:40,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:52:40,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708811393] [2021-02-23 18:52:40,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:52:40,575 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:52:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:40,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:40,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:40,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:40,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:52:40,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:40,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:52:40,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:40,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:52:40,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:40,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:52:40,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:40,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:40,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:52:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:40,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:40,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:40,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:52:40,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708811393] [2021-02-23 18:52:40,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:52:40,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 18:52:40,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063614378] [2021-02-23 18:52:40,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 18:52:40,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:52:40,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 18:52:40,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-23 18:52:41,002 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 7 states. [2021-02-23 18:52:42,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:52:42,240 INFO L93 Difference]: Finished difference Result 186 states and 281 transitions. [2021-02-23 18:52:42,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-23 18:52:42,243 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2021-02-23 18:52:42,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:52:42,258 INFO L225 Difference]: With dead ends: 186 [2021-02-23 18:52:42,258 INFO L226 Difference]: Without dead ends: 110 [2021-02-23 18:52:42,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-02-23 18:52:42,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-02-23 18:52:42,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 100. [2021-02-23 18:52:42,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-02-23 18:52:42,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 123 transitions. [2021-02-23 18:52:42,368 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 123 transitions. Word has length 37 [2021-02-23 18:52:42,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:52:42,369 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 123 transitions. [2021-02-23 18:52:42,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 18:52:42,370 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 123 transitions. [2021-02-23 18:52:42,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-23 18:52:42,388 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:52:42,388 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] [2021-02-23 18:52:42,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:52:42,389 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:52:42,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:52:42,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1777685375, now seen corresponding path program 1 times [2021-02-23 18:52:42,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:52:42,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706799130] [2021-02-23 18:52:42,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:52:42,396 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:52:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:42,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:42,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:42,474 WARN L141 QuantifierPusher]: treesize reduction 6, result has 45.5 percent of original size [2021-02-23 18:52:42,476 WARN L147 QuantifierPusher]: treesize reduction 6, result has 45.5 percent of original size 5 [2021-02-23 18:52:42,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:42,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:52:42,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:42,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:52:42,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:42,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:52:42,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:42,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:52:42,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:42,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:42,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:52:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:42,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:42,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:42,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 18:52:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:42,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:42,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:42,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:52:42,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706799130] [2021-02-23 18:52:42,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:52:42,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 18:52:42,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325168873] [2021-02-23 18:52:42,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 18:52:42,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:52:42,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 18:52:42,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 18:52:42,612 INFO L87 Difference]: Start difference. First operand 100 states and 123 transitions. Second operand 8 states. [2021-02-23 18:52:43,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:52:43,373 INFO L93 Difference]: Finished difference Result 106 states and 128 transitions. [2021-02-23 18:52:43,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 18:52:43,384 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2021-02-23 18:52:43,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:52:43,396 INFO L225 Difference]: With dead ends: 106 [2021-02-23 18:52:43,396 INFO L226 Difference]: Without dead ends: 104 [2021-02-23 18:52:43,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-02-23 18:52:43,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-23 18:52:43,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-02-23 18:52:43,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-23 18:52:43,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2021-02-23 18:52:43,482 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 42 [2021-02-23 18:52:43,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:52:43,483 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2021-02-23 18:52:43,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 18:52:43,484 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2021-02-23 18:52:43,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-02-23 18:52:43,491 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:52:43,493 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] [2021-02-23 18:52:43,494 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:52:43,494 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:52:43,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:52:43,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1379557309, now seen corresponding path program 1 times [2021-02-23 18:52:43,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:52:43,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611987997] [2021-02-23 18:52:43,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:52:43,511 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:52:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:43,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:43,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:43,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:43,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:52:43,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:43,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:43,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:52:43,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:43,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:43,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:43,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 18:52:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:43,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:43,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:43,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 18:52:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:43,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:43,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:43,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 18:52:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:43,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:43,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:43,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 18:52:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:43,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:43,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:43,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-02-23 18:52:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:43,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:43,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:43,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 18:52:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:43,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:43,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-02-23 18:52:43,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611987997] [2021-02-23 18:52:43,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:52:43,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:52:43,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315988312] [2021-02-23 18:52:43,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:52:43,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:52:43,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:52:43,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:52:43,835 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand 4 states. [2021-02-23 18:52:44,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:52:44,197 INFO L93 Difference]: Finished difference Result 147 states and 180 transitions. [2021-02-23 18:52:44,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:52:44,198 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2021-02-23 18:52:44,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:52:44,201 INFO L225 Difference]: With dead ends: 147 [2021-02-23 18:52:44,201 INFO L226 Difference]: Without dead ends: 104 [2021-02-23 18:52:44,202 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 [2021-02-23 18:52:44,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-23 18:52:44,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-02-23 18:52:44,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-23 18:52:44,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2021-02-23 18:52:44,231 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 72 [2021-02-23 18:52:44,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:52:44,231 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2021-02-23 18:52:44,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:52:44,232 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2021-02-23 18:52:44,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-02-23 18:52:44,234 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:52:44,234 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] [2021-02-23 18:52:44,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 18:52:44,234 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:52:44,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:52:44,235 INFO L82 PathProgramCache]: Analyzing trace with hash 302386887, now seen corresponding path program 1 times [2021-02-23 18:52:44,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:52:44,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406589581] [2021-02-23 18:52:44,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:52:44,238 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:52:44,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:44,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:44,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:44,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:44,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:52:44,306 WARN L141 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size [2021-02-23 18:52:44,306 WARN L147 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size 3 [2021-02-23 18:52:44,315 WARN L141 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-02-23 18:52:44,316 WARN L147 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size 10 [2021-02-23 18:52:44,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:44,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:52:44,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:44,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:52:44,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:44,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:44,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:52:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:44,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:44,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:44,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 18:52:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:44,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:44,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:44,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 18:52:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:44,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:44,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:44,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 18:52:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:44,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:44,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:44,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 18:52:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:44,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:44,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:44,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-23 18:52:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:44,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:44,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:44,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 18:52:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:44,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:44,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:44,433 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-02-23 18:52:44,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406589581] [2021-02-23 18:52:44,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:52:44,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 18:52:44,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640377968] [2021-02-23 18:52:44,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 18:52:44,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:52:44,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 18:52:44,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 18:52:44,464 INFO L87 Difference]: Start difference. First operand 104 states and 124 transitions. Second operand 8 states. [2021-02-23 18:52:45,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:52:45,080 INFO L93 Difference]: Finished difference Result 110 states and 129 transitions. [2021-02-23 18:52:45,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 18:52:45,081 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2021-02-23 18:52:45,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:52:45,087 INFO L225 Difference]: With dead ends: 110 [2021-02-23 18:52:45,087 INFO L226 Difference]: Without dead ends: 108 [2021-02-23 18:52:45,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-02-23 18:52:45,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-02-23 18:52:45,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-02-23 18:52:45,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2021-02-23 18:52:45,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 127 transitions. [2021-02-23 18:52:45,160 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 127 transitions. Word has length 75 [2021-02-23 18:52:45,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:52:45,163 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 127 transitions. [2021-02-23 18:52:45,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 18:52:45,164 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 127 transitions. [2021-02-23 18:52:45,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-02-23 18:52:45,175 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:52:45,175 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] [2021-02-23 18:52:45,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 18:52:45,176 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:52:45,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:52:45,178 INFO L82 PathProgramCache]: Analyzing trace with hash 255736435, now seen corresponding path program 1 times [2021-02-23 18:52:45,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:52:45,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252235955] [2021-02-23 18:52:45,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:52:45,187 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:52:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:52:45,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:52:45,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:52:45,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:52:45,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:52:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 18:52:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 18:52:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 18:52:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 18:52:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-23 18:52:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 18:52:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-02-23 18:52:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-02-23 18:52:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-02-23 18:52:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 18:52:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 18:52:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-02-23 18:52:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:45,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:45,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-02-23 18:52:45,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252235955] [2021-02-23 18:52:45,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:52:45,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 18:52:45,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192650585] [2021-02-23 18:52:45,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 18:52:45,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:52:45,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 18:52:45,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-23 18:52:45,599 INFO L87 Difference]: Start difference. First operand 108 states and 127 transitions. Second operand 7 states. [2021-02-23 18:52:46,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:52:46,224 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2021-02-23 18:52:46,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-23 18:52:46,226 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2021-02-23 18:52:46,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:52:46,231 INFO L225 Difference]: With dead ends: 119 [2021-02-23 18:52:46,232 INFO L226 Difference]: Without dead ends: 117 [2021-02-23 18:52:46,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-02-23 18:52:46,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-02-23 18:52:46,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2021-02-23 18:52:46,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2021-02-23 18:52:46,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2021-02-23 18:52:46,288 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 121 [2021-02-23 18:52:46,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:52:46,290 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2021-02-23 18:52:46,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 18:52:46,291 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2021-02-23 18:52:46,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-02-23 18:52:46,297 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:52:46,297 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] [2021-02-23 18:52:46,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 18:52:46,298 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:52:46,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:52:46,299 INFO L82 PathProgramCache]: Analyzing trace with hash -649987322, now seen corresponding path program 1 times [2021-02-23 18:52:46,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:52:46,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676591471] [2021-02-23 18:52:46,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:52:46,302 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:52:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:52:46,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:52:46,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:52:46,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:52:46,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:52:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 18:52:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 18:52:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 18:52:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 18:52:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-23 18:52:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 18:52:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-02-23 18:52:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-02-23 18:52:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-02-23 18:52:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 18:52:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 18:52:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-02-23 18:52:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-02-23 18:52:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:46,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:46,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-02-23 18:52:46,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676591471] [2021-02-23 18:52:46,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:52:46,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 18:52:46,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767067720] [2021-02-23 18:52:46,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 18:52:46,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:52:46,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 18:52:46,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-23 18:52:46,663 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand 7 states. [2021-02-23 18:52:47,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:52:47,296 INFO L93 Difference]: Finished difference Result 124 states and 145 transitions. [2021-02-23 18:52:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-23 18:52:47,296 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 126 [2021-02-23 18:52:47,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:52:47,298 INFO L225 Difference]: With dead ends: 124 [2021-02-23 18:52:47,298 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 18:52:47,299 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 [2021-02-23 18:52:47,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 18:52:47,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 18:52:47,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 18:52:47,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 18:52:47,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2021-02-23 18:52:47,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:52:47,300 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 18:52:47,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 18:52:47,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 18:52:47,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 18:52:47,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 18:52:47,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 18:52:48,015 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 23 [2021-02-23 18:52:48,228 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-23 18:52:48,372 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-23 18:52:48,489 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-23 18:52:49,064 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-23 18:52:49,412 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 23 [2021-02-23 18:52:49,947 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-23 18:52:50,143 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-23 18:52:50,358 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-23 18:52:50,569 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-23 18:52:50,887 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-23 18:52:50,887 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-23 18:52:50,887 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-23 18:52:50,888 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-02-23 18:52:50,888 INFO L189 CegarLoopUtils]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-02-23 18:52:50,888 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:52:50,888 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 18:52:50,888 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2021-02-23 18:52:50,888 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-23 18:52:50,889 INFO L192 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: true [2021-02-23 18:52:50,889 INFO L192 CegarLoopUtils]: At program point L12-2(line 12) the Hoare annotation is: true [2021-02-23 18:52:50,889 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)|)) [2021-02-23 18:52:50,889 INFO L192 CegarLoopUtils]: At program point L12-3(line 12) the Hoare annotation is: true [2021-02-23 18:52:50,889 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:52:50,889 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:52:50,890 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:52:50,890 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 18:52:50,890 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 18:52:50,890 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-02-23 18:52:50,890 INFO L189 CegarLoopUtils]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-02-23 18:52:50,890 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-02-23 18:52:50,890 INFO L189 CegarLoopUtils]: For program point L15-3(lines 14 16) no Hoare annotation was computed. [2021-02-23 18:52:50,890 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-02-23 18:52:50,891 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)) [2021-02-23 18:52:50,891 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-23 18:52:50,891 INFO L192 CegarLoopUtils]: At program point L27-1(line 27) the Hoare annotation is: true [2021-02-23 18:52:50,891 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 24 83) the Hoare annotation is: true [2021-02-23 18:52:50,891 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)) [2021-02-23 18:52:50,891 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)) [2021-02-23 18:52:50,891 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)) [2021-02-23 18:52:50,892 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))) [2021-02-23 18:52:50,892 INFO L192 CegarLoopUtils]: At program point L36(lines 25 83) the Hoare annotation is: true [2021-02-23 18:52:50,892 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))) [2021-02-23 18:52:50,892 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))) [2021-02-23 18:52:50,893 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))) [2021-02-23 18:52:50,893 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)) [2021-02-23 18:52:50,893 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-23 18:52:50,894 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)) [2021-02-23 18:52:50,894 INFO L192 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: true [2021-02-23 18:52:50,894 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)) [2021-02-23 18:52:50,894 INFO L192 CegarLoopUtils]: At program point L61-3(line 61) the Hoare annotation is: true [2021-02-23 18:52:50,894 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)) [2021-02-23 18:52:50,894 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)) [2021-02-23 18:52:50,895 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)) [2021-02-23 18:52:50,895 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))) [2021-02-23 18:52:50,895 INFO L185 CegarLoopUtils]: At program point L37(lines 25 83) the Hoare annotation is: (< 0 (+ main_~scheme~0 1)) [2021-02-23 18:52:50,895 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))) [2021-02-23 18:52:50,896 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)) [2021-02-23 18:52:50,896 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)) [2021-02-23 18:52:50,896 INFO L192 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: true [2021-02-23 18:52:50,896 INFO L192 CegarLoopUtils]: At program point L29-1(line 29) the Hoare annotation is: true [2021-02-23 18:52:50,896 INFO L192 CegarLoopUtils]: At program point L29-2(line 29) the Hoare annotation is: true [2021-02-23 18:52:50,896 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)) [2021-02-23 18:52:50,897 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 24 83) the Hoare annotation is: true [2021-02-23 18:52:50,897 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)) [2021-02-23 18:52:50,897 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)) [2021-02-23 18:52:50,897 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)) [2021-02-23 18:52:50,897 INFO L192 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: true [2021-02-23 18:52:50,897 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)) [2021-02-23 18:52:50,898 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 24 83) the Hoare annotation is: true [2021-02-23 18:52:50,898 INFO L192 CegarLoopUtils]: At program point L30-1(line 30) the Hoare annotation is: true [2021-02-23 18:52:50,898 INFO L192 CegarLoopUtils]: At program point L30-2(line 30) the Hoare annotation is: true [2021-02-23 18:52:50,898 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)) [2021-02-23 18:52:50,898 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)) [2021-02-23 18:52:50,898 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)) [2021-02-23 18:52:50,899 INFO L192 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: true [2021-02-23 18:52:50,899 INFO L192 CegarLoopUtils]: At program point L31-1(line 31) the Hoare annotation is: true [2021-02-23 18:52:50,899 INFO L192 CegarLoopUtils]: At program point L31-2(line 31) the Hoare annotation is: true [2021-02-23 18:52:50,899 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)) [2021-02-23 18:52:50,899 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)) [2021-02-23 18:52:50,899 INFO L192 CegarLoopUtils]: At program point L81(lines 25 83) the Hoare annotation is: true [2021-02-23 18:52:50,900 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)) [2021-02-23 18:52:50,900 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)) [2021-02-23 18:52:50,900 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)) [2021-02-23 18:52:50,900 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)) [2021-02-23 18:52:50,900 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)) [2021-02-23 18:52:50,901 INFO L192 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: true [2021-02-23 18:52:50,901 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))) [2021-02-23 18:52:50,901 INFO L192 CegarLoopUtils]: At program point L32-1(line 32) the Hoare annotation is: true [2021-02-23 18:52:50,901 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)) [2021-02-23 18:52:50,901 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)) [2021-02-23 18:52:50,901 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)) [2021-02-23 18:52:50,902 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)) [2021-02-23 18:52:50,902 INFO L192 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: true [2021-02-23 18:52:50,902 INFO L192 CegarLoopUtils]: At program point L33-1(line 33) the Hoare annotation is: true [2021-02-23 18:52:50,902 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)) [2021-02-23 18:52:50,902 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)) [2021-02-23 18:52:50,902 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)) [2021-02-23 18:52:50,903 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))) [2021-02-23 18:52:50,903 INFO L192 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: true [2021-02-23 18:52:50,903 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))) [2021-02-23 18:52:50,903 INFO L192 CegarLoopUtils]: At program point L34-1(line 34) the Hoare annotation is: true [2021-02-23 18:52:50,903 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)) [2021-02-23 18:52:50,904 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)) [2021-02-23 18:52:50,904 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)) [2021-02-23 18:52:50,904 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)) [2021-02-23 18:52:50,904 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)) [2021-02-23 18:52:50,904 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))) [2021-02-23 18:52:50,904 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)) [2021-02-23 18:52:50,905 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))) [2021-02-23 18:52:50,905 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))) [2021-02-23 18:52:50,905 INFO L192 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: true [2021-02-23 18:52:50,905 INFO L192 CegarLoopUtils]: At program point L35-1(lines 25 83) the Hoare annotation is: true [2021-02-23 18:52:50,905 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))) [2021-02-23 18:52:50,905 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-02-23 18:52:50,906 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))) [2021-02-23 18:52:50,906 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 18:52:50,906 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 18:52:50,906 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))) [2021-02-23 18:52:50,906 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 18:52:50,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:52:50 BoogieIcfgContainer [2021-02-23 18:52:50,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:52:50,935 INFO L168 Benchmark]: Toolchain (without parser) took 12037.16 ms. Allocated memory was 154.1 MB in the beginning and 268.4 MB in the end (delta: 114.3 MB). Free memory was 130.5 MB in the beginning and 206.1 MB in the end (delta: -75.6 MB). Peak memory consumption was 151.3 MB. Max. memory is 8.0 GB. [2021-02-23 18:52:50,936 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 154.1 MB. Free memory was 128.3 MB in the beginning and 128.2 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:52:50,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 458.78 ms. Allocated memory is still 154.1 MB. Free memory was 129.2 MB in the beginning and 118.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 18:52:50,937 INFO L168 Benchmark]: Boogie Preprocessor took 110.23 ms. Allocated memory is still 154.1 MB. Free memory was 118.9 MB in the beginning and 117.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 18:52:50,938 INFO L168 Benchmark]: RCFGBuilder took 819.91 ms. Allocated memory is still 154.1 MB. Free memory was 117.3 MB in the beginning and 126.1 MB in the end (delta: -8.8 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. [2021-02-23 18:52:50,938 INFO L168 Benchmark]: TraceAbstraction took 10619.01 ms. Allocated memory was 154.1 MB in the beginning and 268.4 MB in the end (delta: 114.3 MB). Free memory was 125.5 MB in the beginning and 206.1 MB in the end (delta: -80.5 MB). Peak memory consumption was 145.4 MB. Max. memory is 8.0 GB. [2021-02-23 18:52:50,940 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 154.1 MB. Free memory was 128.3 MB in the beginning and 128.2 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 458.78 ms. Allocated memory is still 154.1 MB. Free memory was 129.2 MB in the beginning and 118.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.23 ms. Allocated memory is still 154.1 MB. Free memory was 118.9 MB in the beginning and 117.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 819.91 ms. Allocated memory is still 154.1 MB. Free memory was 117.3 MB in the beginning and 126.1 MB in the end (delta: -8.8 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10619.01 ms. Allocated memory was 154.1 MB in the beginning and 268.4 MB in the end (delta: 114.3 MB). Free memory was 125.5 MB in the beginning and 206.1 MB in the end (delta: -80.5 MB). Peak memory consumption was 145.4 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: 6.9s, OverallIterations: 6, TraceHistogramMax: 14, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 533 SDtfs, 690 SDslu, 528 SDs, 0 SdLazy, 1730 SolverSat, 388 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.1s 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: 0.3s 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, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...