/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:22:06,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:22:06,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:22:06,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:22:06,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:22:06,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:22:06,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:22:06,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:22:06,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:22:06,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:22:06,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:22:06,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:22:06,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:22:06,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:22:06,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:22:06,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:22:06,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:22:06,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:22:06,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:22:06,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:22:06,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:22:06,935 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:22:06,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:22:06,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:22:06,938 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:22:06,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:22:06,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:22:06,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:22:06,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:22:06,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:22:06,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:22:06,940 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:22:06,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:22:06,940 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:22:06,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:22:06,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:22:06,941 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:22:06,941 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:22:06,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:22:06,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:22:06,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:22:06,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:22:06,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:22:06,943 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:22:06,943 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:22:07,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:22:07,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:22:07,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:22:07,411 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:22:07,412 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:22:07,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2021-02-22 02:22:07,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336c6df05/8214640d1f9642a98f188f47d448a45e/FLAGaab09480f [2021-02-22 02:22:08,190 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:22:08,191 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2021-02-22 02:22:08,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336c6df05/8214640d1f9642a98f188f47d448a45e/FLAGaab09480f [2021-02-22 02:22:08,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336c6df05/8214640d1f9642a98f188f47d448a45e [2021-02-22 02:22:08,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:22:08,556 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:22:08,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:22:08,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:22:08,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:22:08,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:22:08" (1/1) ... [2021-02-22 02:22:08,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@353e9504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:08, skipping insertion in model container [2021-02-22 02:22:08,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:22:08" (1/1) ... [2021-02-22 02:22:08,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:22:08,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:22:08,760 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] [2021-02-22 02:22:08,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:22:08,806 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:22:08,821 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] [2021-02-22 02:22:08,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:22:08,853 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:22:08,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:08 WrapperNode [2021-02-22 02:22:08,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:22:08,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:22:08,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:22:08,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:22:08,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:08" (1/1) ... [2021-02-22 02:22:08,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:08" (1/1) ... [2021-02-22 02:22:08,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:08" (1/1) ... [2021-02-22 02:22:08,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:08" (1/1) ... [2021-02-22 02:22:08,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:08" (1/1) ... [2021-02-22 02:22:08,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:08" (1/1) ... [2021-02-22 02:22:08,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:08" (1/1) ... [2021-02-22 02:22:08,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:22:08,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:22:08,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:22:08,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:22:08,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:22:09,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:22:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:22:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:22:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-22 02:22:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-22 02:22:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:22:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:22:09,028 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:22:09,028 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-22 02:22:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-22 02:22:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:22:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:22:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-22 02:22:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-22 02:22:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:22:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:22:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:22:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:22:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:22:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:22:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:22:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:22:09,800 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:22:09,801 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-22 02:22:09,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:22:09 BoogieIcfgContainer [2021-02-22 02:22:09,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:22:09,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:22:09,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:22:09,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:22:09,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:22:08" (1/3) ... [2021-02-22 02:22:09,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102edd7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:22:09, skipping insertion in model container [2021-02-22 02:22:09,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:08" (2/3) ... [2021-02-22 02:22:09,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102edd7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:22:09, skipping insertion in model container [2021-02-22 02:22:09,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:22:09" (3/3) ... [2021-02-22 02:22:09,814 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i [2021-02-22 02:22:09,823 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:22:09,832 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:22:09,854 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:22:09,882 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:22:09,882 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:22:09,883 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:22:09,883 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:22:09,883 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:22:09,883 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:22:09,883 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:22:09,883 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:22:09,906 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2021-02-22 02:22:09,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-22 02:22:09,918 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:09,919 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] [2021-02-22 02:22:09,920 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:09,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:09,928 INFO L82 PathProgramCache]: Analyzing trace with hash 982526872, now seen corresponding path program 1 times [2021-02-22 02:22:09,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:09,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723317270] [2021-02-22 02:22:09,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:10,035 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:10,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:10,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:22:10,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:22:10,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:10,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:10,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:10,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:10,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:10,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:22:10,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723317270] [2021-02-22 02:22:10,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:10,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 02:22:10,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166000788] [2021-02-22 02:22:10,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 02:22:10,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:10,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 02:22:10,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-22 02:22:10,536 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 7 states. [2021-02-22 02:22:11,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:11,738 INFO L93 Difference]: Finished difference Result 186 states and 281 transitions. [2021-02-22 02:22:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-22 02:22:11,740 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2021-02-22 02:22:11,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:11,762 INFO L225 Difference]: With dead ends: 186 [2021-02-22 02:22:11,762 INFO L226 Difference]: Without dead ends: 110 [2021-02-22 02:22:11,776 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 [2021-02-22 02:22:11,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-02-22 02:22:11,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 100. [2021-02-22 02:22:11,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-02-22 02:22:11,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 123 transitions. [2021-02-22 02:22:11,930 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 123 transitions. Word has length 37 [2021-02-22 02:22:11,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:11,931 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 123 transitions. [2021-02-22 02:22:11,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 02:22:11,932 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 123 transitions. [2021-02-22 02:22:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-22 02:22:11,935 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:11,936 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] [2021-02-22 02:22:11,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:22:11,936 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:11,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:11,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1777685375, now seen corresponding path program 1 times [2021-02-22 02:22:11,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:11,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390988690] [2021-02-22 02:22:11,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:11,942 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:12,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:12,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:12,044 WARN L141 QuantifierPusher]: treesize reduction 6, result has 45.5 percent of original size [2021-02-22 02:22:12,046 WARN L147 QuantifierPusher]: treesize reduction 6, result has 45.5 percent of original size 5 [2021-02-22 02:22:12,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:12,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:12,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:12,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:22:12,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:12,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:12,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:12,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:12,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:12,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:12,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:12,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:12,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:12,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-22 02:22:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:12,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:12,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:12,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:22:12,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390988690] [2021-02-22 02:22:12,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:12,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:22:12,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791955761] [2021-02-22 02:22:12,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:22:12,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:12,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:22:12,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:22:12,163 INFO L87 Difference]: Start difference. First operand 100 states and 123 transitions. Second operand 8 states. [2021-02-22 02:22:12,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:12,852 INFO L93 Difference]: Finished difference Result 106 states and 128 transitions. [2021-02-22 02:22:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-22 02:22:12,854 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2021-02-22 02:22:12,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:12,859 INFO L225 Difference]: With dead ends: 106 [2021-02-22 02:22:12,859 INFO L226 Difference]: Without dead ends: 104 [2021-02-22 02:22:12,861 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 [2021-02-22 02:22:12,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-22 02:22:12,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-02-22 02:22:12,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-22 02:22:12,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2021-02-22 02:22:12,891 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 42 [2021-02-22 02:22:12,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:12,891 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2021-02-22 02:22:12,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:22:12,892 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2021-02-22 02:22:12,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-02-22 02:22:12,895 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:12,895 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] [2021-02-22 02:22:12,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 02:22:12,895 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:12,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:12,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1379557309, now seen corresponding path program 1 times [2021-02-22 02:22:12,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:12,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456439273] [2021-02-22 02:22:12,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:12,900 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:12,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:12,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:12,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:12,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:22:12,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:12,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:12,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:12,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:12,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-22 02:22:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:22:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-22 02:22:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-22 02:22:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-02-22 02:22:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-22 02:22:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,043 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-02-22 02:22:13,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456439273] [2021-02-22 02:22:13,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:13,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:22:13,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31495016] [2021-02-22 02:22:13,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:22:13,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:13,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:22:13,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:22:13,046 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand 4 states. [2021-02-22 02:22:13,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:13,367 INFO L93 Difference]: Finished difference Result 147 states and 180 transitions. [2021-02-22 02:22:13,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 02:22:13,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2021-02-22 02:22:13,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:13,370 INFO L225 Difference]: With dead ends: 147 [2021-02-22 02:22:13,370 INFO L226 Difference]: Without dead ends: 104 [2021-02-22 02:22:13,371 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 [2021-02-22 02:22:13,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-22 02:22:13,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-02-22 02:22:13,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-22 02:22:13,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2021-02-22 02:22:13,400 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 72 [2021-02-22 02:22:13,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:13,401 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2021-02-22 02:22:13,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:22:13,401 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2021-02-22 02:22:13,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-02-22 02:22:13,403 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:13,403 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] [2021-02-22 02:22:13,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 02:22:13,403 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:13,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:13,404 INFO L82 PathProgramCache]: Analyzing trace with hash 302386887, now seen corresponding path program 1 times [2021-02-22 02:22:13,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:13,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345132834] [2021-02-22 02:22:13,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:13,409 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:22:13,489 WARN L141 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size [2021-02-22 02:22:13,489 WARN L147 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size 3 [2021-02-22 02:22:13,502 WARN L141 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-02-22 02:22:13,503 WARN L147 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size 10 [2021-02-22 02:22:13,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:13,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:13,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-22 02:22:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:22:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-22 02:22:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-22 02:22:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-22 02:22:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-22 02:22:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,625 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-02-22 02:22:13,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345132834] [2021-02-22 02:22:13,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:13,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:22:13,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317568828] [2021-02-22 02:22:13,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:22:13,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:13,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:22:13,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:22:13,628 INFO L87 Difference]: Start difference. First operand 104 states and 124 transitions. Second operand 8 states. [2021-02-22 02:22:14,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:14,240 INFO L93 Difference]: Finished difference Result 110 states and 129 transitions. [2021-02-22 02:22:14,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-22 02:22:14,241 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2021-02-22 02:22:14,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:14,244 INFO L225 Difference]: With dead ends: 110 [2021-02-22 02:22:14,244 INFO L226 Difference]: Without dead ends: 108 [2021-02-22 02:22:14,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-02-22 02:22:14,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-02-22 02:22:14,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-02-22 02:22:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2021-02-22 02:22:14,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 127 transitions. [2021-02-22 02:22:14,309 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 127 transitions. Word has length 75 [2021-02-22 02:22:14,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:14,312 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 127 transitions. [2021-02-22 02:22:14,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:22:14,312 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 127 transitions. [2021-02-22 02:22:14,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-02-22 02:22:14,320 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:14,324 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] [2021-02-22 02:22:14,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 02:22:14,325 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:14,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:14,326 INFO L82 PathProgramCache]: Analyzing trace with hash 255736435, now seen corresponding path program 1 times [2021-02-22 02:22:14,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:14,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1091484280] [2021-02-22 02:22:14,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:14,331 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:22:14,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:22:14,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:14,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:14,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-22 02:22:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:22:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-22 02:22:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-22 02:22:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-22 02:22:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-22 02:22:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-02-22 02:22:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-02-22 02:22:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-02-22 02:22:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 02:22:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-22 02:22:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-02-22 02:22:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:14,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:14,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:14,611 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-02-22 02:22:14,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1091484280] [2021-02-22 02:22:14,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:14,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 02:22:14,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150537012] [2021-02-22 02:22:14,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 02:22:14,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:14,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 02:22:14,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-22 02:22:14,615 INFO L87 Difference]: Start difference. First operand 108 states and 127 transitions. Second operand 7 states. [2021-02-22 02:22:15,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:15,216 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2021-02-22 02:22:15,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-22 02:22:15,224 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2021-02-22 02:22:15,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:15,226 INFO L225 Difference]: With dead ends: 119 [2021-02-22 02:22:15,226 INFO L226 Difference]: Without dead ends: 117 [2021-02-22 02:22:15,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:22:15,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-02-22 02:22:15,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2021-02-22 02:22:15,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2021-02-22 02:22:15,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2021-02-22 02:22:15,256 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 121 [2021-02-22 02:22:15,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:15,257 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2021-02-22 02:22:15,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 02:22:15,257 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2021-02-22 02:22:15,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-02-22 02:22:15,259 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:15,260 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] [2021-02-22 02:22:15,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 02:22:15,260 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:15,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:15,261 INFO L82 PathProgramCache]: Analyzing trace with hash -649987322, now seen corresponding path program 1 times [2021-02-22 02:22:15,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:15,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593075625] [2021-02-22 02:22:15,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:15,265 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:22:15,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:22:15,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:15,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:15,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-22 02:22:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:22:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-22 02:22:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-22 02:22:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-22 02:22:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-22 02:22:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-02-22 02:22:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-02-22 02:22:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-02-22 02:22:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 02:22:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-22 02:22:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-02-22 02:22:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-02-22 02:22:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,585 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-02-22 02:22:15,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593075625] [2021-02-22 02:22:15,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:15,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 02:22:15,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672392440] [2021-02-22 02:22:15,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 02:22:15,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:15,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 02:22:15,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-22 02:22:15,588 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand 7 states. [2021-02-22 02:22:16,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:16,220 INFO L93 Difference]: Finished difference Result 124 states and 145 transitions. [2021-02-22 02:22:16,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-22 02:22:16,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 126 [2021-02-22 02:22:16,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:16,222 INFO L225 Difference]: With dead ends: 124 [2021-02-22 02:22:16,222 INFO L226 Difference]: Without dead ends: 0 [2021-02-22 02:22:16,223 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 [2021-02-22 02:22:16,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-22 02:22:16,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-22 02:22:16,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-22 02:22:16,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-22 02:22:16,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2021-02-22 02:22:16,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:16,224 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-22 02:22:16,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 02:22:16,224 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-22 02:22:16,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-22 02:22:16,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 02:22:16,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-22 02:22:17,105 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-22 02:22:17,251 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-22 02:22:17,376 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-22 02:22:17,940 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-22 02:22:18,767 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-22 02:22:18,969 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-22 02:22:19,192 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-22 02:22:19,400 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-02-22 02:22:19,718 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-22 02:22:19,718 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-22 02:22:19,718 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-22 02:22:19,719 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-02-22 02:22:19,719 INFO L189 CegarLoopUtils]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-02-22 02:22:19,719 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 02:22:19,719 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-22 02:22:19,719 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2021-02-22 02:22:19,719 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-22 02:22:19,719 INFO L192 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: true [2021-02-22 02:22:19,720 INFO L192 CegarLoopUtils]: At program point L12-2(line 12) the Hoare annotation is: true [2021-02-22 02:22:19,720 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)|)) [2021-02-22 02:22:19,720 INFO L192 CegarLoopUtils]: At program point L12-3(line 12) the Hoare annotation is: true [2021-02-22 02:22:19,720 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-22 02:22:19,720 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-22 02:22:19,720 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 02:22:19,721 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-22 02:22:19,721 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-22 02:22:19,721 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-02-22 02:22:19,721 INFO L189 CegarLoopUtils]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-02-22 02:22:19,721 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-02-22 02:22:19,721 INFO L189 CegarLoopUtils]: For program point L15-3(lines 14 16) no Hoare annotation was computed. [2021-02-22 02:22:19,721 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-02-22 02:22:19,722 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)) [2021-02-22 02:22:19,722 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-22 02:22:19,722 INFO L192 CegarLoopUtils]: At program point L27-1(line 27) the Hoare annotation is: true [2021-02-22 02:22:19,722 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 24 83) the Hoare annotation is: true [2021-02-22 02:22:19,722 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)) [2021-02-22 02:22:19,722 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)) [2021-02-22 02:22:19,723 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)) [2021-02-22 02:22:19,723 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))) [2021-02-22 02:22:19,723 INFO L192 CegarLoopUtils]: At program point L36(lines 25 83) the Hoare annotation is: true [2021-02-22 02:22:19,723 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))) [2021-02-22 02:22:19,724 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))) [2021-02-22 02:22:19,724 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))) [2021-02-22 02:22:19,724 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)) [2021-02-22 02:22:19,724 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-22 02:22:19,725 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)) [2021-02-22 02:22:19,725 INFO L192 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: true [2021-02-22 02:22:19,725 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)) [2021-02-22 02:22:19,725 INFO L192 CegarLoopUtils]: At program point L61-3(line 61) the Hoare annotation is: true [2021-02-22 02:22:19,725 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)) [2021-02-22 02:22:19,726 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)) [2021-02-22 02:22:19,726 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)) [2021-02-22 02:22:19,726 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))) [2021-02-22 02:22:19,726 INFO L185 CegarLoopUtils]: At program point L37(lines 25 83) the Hoare annotation is: (< 0 (+ main_~scheme~0 1)) [2021-02-22 02:22:19,727 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))) [2021-02-22 02:22:19,727 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)) [2021-02-22 02:22:19,727 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)) [2021-02-22 02:22:19,727 INFO L192 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: true [2021-02-22 02:22:19,727 INFO L192 CegarLoopUtils]: At program point L29-1(line 29) the Hoare annotation is: true [2021-02-22 02:22:19,727 INFO L192 CegarLoopUtils]: At program point L29-2(line 29) the Hoare annotation is: true [2021-02-22 02:22:19,728 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)) [2021-02-22 02:22:19,728 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 24 83) the Hoare annotation is: true [2021-02-22 02:22:19,728 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)) [2021-02-22 02:22:19,728 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)) [2021-02-22 02:22:19,729 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)) [2021-02-22 02:22:19,729 INFO L192 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: true [2021-02-22 02:22:19,729 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)) [2021-02-22 02:22:19,729 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 24 83) the Hoare annotation is: true [2021-02-22 02:22:19,729 INFO L192 CegarLoopUtils]: At program point L30-1(line 30) the Hoare annotation is: true [2021-02-22 02:22:19,729 INFO L192 CegarLoopUtils]: At program point L30-2(line 30) the Hoare annotation is: true [2021-02-22 02:22:19,730 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)) [2021-02-22 02:22:19,730 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)) [2021-02-22 02:22:19,730 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)) [2021-02-22 02:22:19,730 INFO L192 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: true [2021-02-22 02:22:19,730 INFO L192 CegarLoopUtils]: At program point L31-1(line 31) the Hoare annotation is: true [2021-02-22 02:22:19,730 INFO L192 CegarLoopUtils]: At program point L31-2(line 31) the Hoare annotation is: true [2021-02-22 02:22:19,731 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)) [2021-02-22 02:22:19,731 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)) [2021-02-22 02:22:19,731 INFO L192 CegarLoopUtils]: At program point L81(lines 25 83) the Hoare annotation is: true [2021-02-22 02:22:19,731 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)) [2021-02-22 02:22:19,731 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)) [2021-02-22 02:22:19,732 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)) [2021-02-22 02:22:19,732 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)) [2021-02-22 02:22:19,732 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)) [2021-02-22 02:22:19,732 INFO L192 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: true [2021-02-22 02:22:19,733 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))) [2021-02-22 02:22:19,733 INFO L192 CegarLoopUtils]: At program point L32-1(line 32) the Hoare annotation is: true [2021-02-22 02:22:19,733 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)) [2021-02-22 02:22:19,733 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)) [2021-02-22 02:22:19,733 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)) [2021-02-22 02:22:19,734 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)) [2021-02-22 02:22:19,734 INFO L192 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: true [2021-02-22 02:22:19,734 INFO L192 CegarLoopUtils]: At program point L33-1(line 33) the Hoare annotation is: true [2021-02-22 02:22:19,734 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)) [2021-02-22 02:22:19,734 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)) [2021-02-22 02:22:19,735 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)) [2021-02-22 02:22:19,735 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))) [2021-02-22 02:22:19,735 INFO L192 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: true [2021-02-22 02:22:19,735 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))) [2021-02-22 02:22:19,735 INFO L192 CegarLoopUtils]: At program point L34-1(line 34) the Hoare annotation is: true [2021-02-22 02:22:19,736 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)) [2021-02-22 02:22:19,736 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)) [2021-02-22 02:22:19,736 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)) [2021-02-22 02:22:19,736 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)) [2021-02-22 02:22:19,736 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)) [2021-02-22 02:22:19,737 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))) [2021-02-22 02:22:19,737 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)) [2021-02-22 02:22:19,737 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))) [2021-02-22 02:22:19,737 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))) [2021-02-22 02:22:19,738 INFO L192 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: true [2021-02-22 02:22:19,738 INFO L192 CegarLoopUtils]: At program point L35-1(lines 25 83) the Hoare annotation is: true [2021-02-22 02:22:19,738 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))) [2021-02-22 02:22:19,738 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-02-22 02:22:19,738 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))) [2021-02-22 02:22:19,738 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-22 02:22:19,739 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-22 02:22:19,739 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))) [2021-02-22 02:22:19,739 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-22 02:22:19,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:22:19 BoogieIcfgContainer [2021-02-22 02:22:19,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:22:19,764 INFO L168 Benchmark]: Toolchain (without parser) took 11223.21 ms. Allocated memory was 151.0 MB in the beginning and 269.5 MB in the end (delta: 118.5 MB). Free memory was 128.5 MB in the beginning and 169.9 MB in the end (delta: -41.4 MB). Peak memory consumption was 125.4 MB. Max. memory is 8.0 GB. [2021-02-22 02:22:19,765 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 151.0 MB. Free memory is still 127.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:22:19,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.37 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 117.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-22 02:22:19,766 INFO L168 Benchmark]: Boogie Preprocessor took 49.00 ms. Allocated memory is still 151.0 MB. Free memory was 117.0 MB in the beginning and 114.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:22:19,767 INFO L168 Benchmark]: RCFGBuilder took 898.43 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 124.5 MB in the end (delta: -9.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-02-22 02:22:19,767 INFO L168 Benchmark]: TraceAbstraction took 9957.69 ms. Allocated memory was 151.0 MB in the beginning and 269.5 MB in the end (delta: 118.5 MB). Free memory was 124.0 MB in the beginning and 169.9 MB in the end (delta: -45.9 MB). Peak memory consumption was 121.4 MB. Max. memory is 8.0 GB. [2021-02-22 02:22:19,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 151.0 MB. Free memory is still 127.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 293.37 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 117.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 49.00 ms. Allocated memory is still 151.0 MB. Free memory was 117.0 MB in the beginning and 114.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 898.43 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 124.5 MB in the end (delta: -9.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9957.69 ms. Allocated memory was 151.0 MB in the beginning and 269.5 MB in the end (delta: 118.5 MB). Free memory was 124.0 MB in the beginning and 169.9 MB in the end (delta: -45.9 MB). Peak memory consumption was 121.4 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: 6.3s, OverallIterations: 6, TraceHistogramMax: 14, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 533 SDtfs, 690 SDslu, 528 SDs, 0 SdLazy, 1730 SolverSat, 388 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s 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: 0.2s 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, 2.8s 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...