/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.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:22:03,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:22:03,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:22:03,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 02:22:03,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 02:22:03,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 02:22:03,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 02:22:03,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 02:22:03,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 02:22:03,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 02:22:03,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 02:22:03,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 02:22:03,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:22:03,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:22:03,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:22:03,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:22:03,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:22:03,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:22:03,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:22:03,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:22:03,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:22:03,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:22:03,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:22:03,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:22:03,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:22:03,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:22:03,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:22:03,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:22:03,402 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 02:22:03,414 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:22:03,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:22:03,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:22:03,416 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:22:03,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:22:03,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:22:03,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:22:03,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:22:03,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:22:03,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:22:03,418 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:22:03,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:22:03,418 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:22:03,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:22:03,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:22:03,419 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:22:03,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:22:03,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:22:03,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:22:03,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:22:03,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:22:03,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:22:03,421 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:22:03,421 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:22:03,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:22:03,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:22:03,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:22:03,827 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:22:03,828 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:22:03,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2021-02-22 02:22:03,899 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/247048812/614781dd56bd4879b80ee3da37d2d40f/FLAG9fd9b159d [2021-02-22 02:22:04,539 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:22:04,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2021-02-22 02:22:04,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/247048812/614781dd56bd4879b80ee3da37d2d40f/FLAG9fd9b159d [2021-02-22 02:22:04,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/247048812/614781dd56bd4879b80ee3da37d2d40f [2021-02-22 02:22:04,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:22:04,896 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:22:04,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:22:04,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:22:04,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:22:04,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:22:04" (1/1) ... [2021-02-22 02:22:04,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e69df9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:04, skipping insertion in model container [2021-02-22 02:22:04,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:22:04" (1/1) ... [2021-02-22 02:22:04,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:22:04,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:22:05,111 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.v+cfa-reducer.c[1551,1564] [2021-02-22 02:22:05,118 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.v+cfa-reducer.c[1758,1771] [2021-02-22 02:22:05,124 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.v+cfa-reducer.c[2095,2108] [2021-02-22 02:22:05,129 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.v+cfa-reducer.c[2296,2309] [2021-02-22 02:22:05,139 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.v+cfa-reducer.c[2701,2714] [2021-02-22 02:22:05,140 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.v+cfa-reducer.c[2902,2915] [2021-02-22 02:22:05,149 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.v+cfa-reducer.c[3228,3241] [2021-02-22 02:22:05,156 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.v+cfa-reducer.c[3435,3448] [2021-02-22 02:22:05,163 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.v+cfa-reducer.c[3914,3927] [2021-02-22 02:22:05,167 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.v+cfa-reducer.c[4118,4131] [2021-02-22 02:22:05,172 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.v+cfa-reducer.c[4426,4439] [2021-02-22 02:22:05,178 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.v+cfa-reducer.c[4630,4643] [2021-02-22 02:22:05,185 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.v+cfa-reducer.c[4995,5008] [2021-02-22 02:22:05,192 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.v+cfa-reducer.c[5198,5211] [2021-02-22 02:22:05,199 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.v+cfa-reducer.c[5412,5425] [2021-02-22 02:22:05,208 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.v+cfa-reducer.c[5616,5629] [2021-02-22 02:22:05,214 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.v+cfa-reducer.c[6138,6151] [2021-02-22 02:22:05,216 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.v+cfa-reducer.c[6342,6355] [2021-02-22 02:22:05,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:22:05,242 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:22:05,262 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.v+cfa-reducer.c[1551,1564] [2021-02-22 02:22:05,263 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.v+cfa-reducer.c[1758,1771] [2021-02-22 02:22:05,266 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.v+cfa-reducer.c[2095,2108] [2021-02-22 02:22:05,267 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.v+cfa-reducer.c[2296,2309] [2021-02-22 02:22:05,269 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.v+cfa-reducer.c[2701,2714] [2021-02-22 02:22:05,271 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.v+cfa-reducer.c[2902,2915] [2021-02-22 02:22:05,274 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.v+cfa-reducer.c[3228,3241] [2021-02-22 02:22:05,276 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.v+cfa-reducer.c[3435,3448] [2021-02-22 02:22:05,279 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.v+cfa-reducer.c[3914,3927] [2021-02-22 02:22:05,281 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.v+cfa-reducer.c[4118,4131] [2021-02-22 02:22:05,283 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.v+cfa-reducer.c[4426,4439] [2021-02-22 02:22:05,285 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.v+cfa-reducer.c[4630,4643] [2021-02-22 02:22:05,288 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.v+cfa-reducer.c[4995,5008] [2021-02-22 02:22:05,290 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.v+cfa-reducer.c[5198,5211] [2021-02-22 02:22:05,292 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.v+cfa-reducer.c[5412,5425] [2021-02-22 02:22:05,294 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.v+cfa-reducer.c[5616,5629] [2021-02-22 02:22:05,297 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.v+cfa-reducer.c[6138,6151] [2021-02-22 02:22:05,299 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.v+cfa-reducer.c[6342,6355] [2021-02-22 02:22:05,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:22:05,320 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:22:05,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:05 WrapperNode [2021-02-22 02:22:05,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:22:05,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:22:05,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:22:05,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:22:05,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:05" (1/1) ... [2021-02-22 02:22:05,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:05" (1/1) ... [2021-02-22 02:22:05,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:05" (1/1) ... [2021-02-22 02:22:05,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:05" (1/1) ... [2021-02-22 02:22:05,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:05" (1/1) ... [2021-02-22 02:22:05,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:05" (1/1) ... [2021-02-22 02:22:05,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:05" (1/1) ... [2021-02-22 02:22:05,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:22:05,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:22:05,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:22:05,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:22:05,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:05" (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 02:22:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:22:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:22:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:22:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-22 02:22:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:22:05,569 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:22:05,569 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:22:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:22:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:22:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-22 02:22:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-22 02:22:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:22:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:22:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:22:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:22:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:22:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:22:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:22:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:22:06,561 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:22:06,562 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 02:22:06,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:22:06 BoogieIcfgContainer [2021-02-22 02:22:06,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:22:06,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:22:06,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:22:06,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:22:06,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:22:04" (1/3) ... [2021-02-22 02:22:06,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bac23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:22:06, skipping insertion in model container [2021-02-22 02:22:06,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:22:05" (2/3) ... [2021-02-22 02:22:06,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bac23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:22:06, skipping insertion in model container [2021-02-22 02:22:06,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:22:06" (3/3) ... [2021-02-22 02:22:06,574 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2021-02-22 02:22:06,581 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:22:06,588 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2021-02-22 02:22:06,610 INFO L253 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-02-22 02:22:06,636 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:22:06,637 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:22:06,637 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:22:06,637 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:22:06,637 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:22:06,638 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:22:06,638 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:22:06,638 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:22:06,663 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states. [2021-02-22 02:22:06,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-22 02:22:06,674 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:06,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:22:06,676 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:06,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:06,683 INFO L82 PathProgramCache]: Analyzing trace with hash 747375387, now seen corresponding path program 1 times [2021-02-22 02:22:06,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:06,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078705822] [2021-02-22 02:22:06,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:06,776 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:07,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:07,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:07,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:07,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:22:07,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:07,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:22:07,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:07,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:07,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:07,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:07,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:07,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:07,217 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-02-22 02:22:07,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:07,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:07,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:07,279 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 02:22:07,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2078705822] [2021-02-22 02:22:07,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:07,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 02:22:07,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92440660] [2021-02-22 02:22:07,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 02:22:07,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:07,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 02:22:07,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-22 02:22:07,313 INFO L87 Difference]: Start difference. First operand 232 states. Second operand 7 states. [2021-02-22 02:22:08,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:08,500 INFO L93 Difference]: Finished difference Result 298 states and 344 transitions. [2021-02-22 02:22:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-22 02:22:08,502 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2021-02-22 02:22:08,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:08,516 INFO L225 Difference]: With dead ends: 298 [2021-02-22 02:22:08,516 INFO L226 Difference]: Without dead ends: 247 [2021-02-22 02:22:08,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-02-22 02:22:08,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-02-22 02:22:08,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 195. [2021-02-22 02:22:08,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2021-02-22 02:22:08,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 198 transitions. [2021-02-22 02:22:08,631 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 198 transitions. Word has length 46 [2021-02-22 02:22:08,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:08,634 INFO L480 AbstractCegarLoop]: Abstraction has 195 states and 198 transitions. [2021-02-22 02:22:08,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 02:22:08,634 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 198 transitions. [2021-02-22 02:22:08,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-22 02:22:08,639 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:08,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:22:08,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:22:08,640 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:08,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:08,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1649060770, now seen corresponding path program 1 times [2021-02-22 02:22:08,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:08,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755348636] [2021-02-22 02:22:08,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:08,650 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:08,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:08,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:08,756 WARN L141 QuantifierPusher]: treesize reduction 6, result has 45.5 percent of original size [2021-02-22 02:22:08,757 WARN L147 QuantifierPusher]: treesize reduction 6, result has 45.5 percent of original size 5 [2021-02-22 02:22:08,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:08,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:08,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:08,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:22:08,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:08,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:08,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:08,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:08,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:08,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:08,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:08,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:08,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:08,843 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 02:22:08,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755348636] [2021-02-22 02:22:08,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:08,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:22:08,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324007598] [2021-02-22 02:22:08,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:22:08,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:08,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:22:08,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:22:08,846 INFO L87 Difference]: Start difference. First operand 195 states and 198 transitions. Second operand 8 states. [2021-02-22 02:22:09,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:09,337 INFO L93 Difference]: Finished difference Result 195 states and 198 transitions. [2021-02-22 02:22:09,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-22 02:22:09,338 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2021-02-22 02:22:09,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:09,345 INFO L225 Difference]: With dead ends: 195 [2021-02-22 02:22:09,346 INFO L226 Difference]: Without dead ends: 193 [2021-02-22 02:22:09,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:22:09,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-02-22 02:22:09,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2021-02-22 02:22:09,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2021-02-22 02:22:09,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 196 transitions. [2021-02-22 02:22:09,449 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 196 transitions. Word has length 51 [2021-02-22 02:22:09,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:09,450 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 196 transitions. [2021-02-22 02:22:09,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:22:09,451 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 196 transitions. [2021-02-22 02:22:09,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-22 02:22:09,456 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:09,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:22:09,456 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 02:22:09,457 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:09,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:09,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1460429861, now seen corresponding path program 1 times [2021-02-22 02:22:09,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:09,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014932483] [2021-02-22 02:22:09,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:09,464 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:09,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:09,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:09,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:09,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:22:09,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:09,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:22:09,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:09,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:09,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:09,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:09,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:09,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:09,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:09,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:09,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:09,655 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 02:22:09,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014932483] [2021-02-22 02:22:09,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:09,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 02:22:09,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987411424] [2021-02-22 02:22:09,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 02:22:09,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:09,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 02:22:09,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-22 02:22:09,663 INFO L87 Difference]: Start difference. First operand 193 states and 196 transitions. Second operand 7 states. [2021-02-22 02:22:10,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:10,449 INFO L93 Difference]: Finished difference Result 245 states and 250 transitions. [2021-02-22 02:22:10,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-22 02:22:10,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2021-02-22 02:22:10,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:10,452 INFO L225 Difference]: With dead ends: 245 [2021-02-22 02:22:10,452 INFO L226 Difference]: Without dead ends: 243 [2021-02-22 02:22:10,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:22:10,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-02-22 02:22:10,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 191. [2021-02-22 02:22:10,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2021-02-22 02:22:10,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 194 transitions. [2021-02-22 02:22:10,503 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 194 transitions. Word has length 61 [2021-02-22 02:22:10,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:10,504 INFO L480 AbstractCegarLoop]: Abstraction has 191 states and 194 transitions. [2021-02-22 02:22:10,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 02:22:10,504 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 194 transitions. [2021-02-22 02:22:10,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-02-22 02:22:10,505 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:10,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:22:10,505 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 02:22:10,506 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:10,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:10,506 INFO L82 PathProgramCache]: Analyzing trace with hash -180659599, now seen corresponding path program 1 times [2021-02-22 02:22:10,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:10,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795423404] [2021-02-22 02:22:10,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:10,509 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:10,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:10,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:22:10,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:22:10,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:10,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:10,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:10,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:10,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:10,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:10,635 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 02:22:10,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795423404] [2021-02-22 02:22:10,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:10,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 02:22:10,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360553264] [2021-02-22 02:22:10,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 02:22:10,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:10,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 02:22:10,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-22 02:22:10,644 INFO L87 Difference]: Start difference. First operand 191 states and 194 transitions. Second operand 7 states. [2021-02-22 02:22:11,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:11,097 INFO L93 Difference]: Finished difference Result 191 states and 194 transitions. [2021-02-22 02:22:11,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-22 02:22:11,097 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2021-02-22 02:22:11,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:11,100 INFO L225 Difference]: With dead ends: 191 [2021-02-22 02:22:11,100 INFO L226 Difference]: Without dead ends: 189 [2021-02-22 02:22:11,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-02-22 02:22:11,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-02-22 02:22:11,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2021-02-22 02:22:11,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2021-02-22 02:22:11,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 192 transitions. [2021-02-22 02:22:11,159 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 192 transitions. Word has length 66 [2021-02-22 02:22:11,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:11,160 INFO L480 AbstractCegarLoop]: Abstraction has 189 states and 192 transitions. [2021-02-22 02:22:11,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 02:22:11,160 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 192 transitions. [2021-02-22 02:22:11,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-02-22 02:22:11,169 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:11,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:22:11,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 02:22:11,170 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:11,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:11,171 INFO L82 PathProgramCache]: Analyzing trace with hash -823680305, now seen corresponding path program 1 times [2021-02-22 02:22:11,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:11,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293398804] [2021-02-22 02:22:11,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:11,173 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:11,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:11,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:11,247 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-22 02:22:11,248 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-22 02:22:11,260 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-22 02:22:11,261 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-22 02:22:11,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:11,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:11,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:11,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:11,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:11,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:11,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:11,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:11,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:11,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:11,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:11,349 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 02:22:11,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293398804] [2021-02-22 02:22:11,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:11,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:22:11,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502324150] [2021-02-22 02:22:11,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:22:11,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:11,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:22:11,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:22:11,352 INFO L87 Difference]: Start difference. First operand 189 states and 192 transitions. Second operand 8 states. [2021-02-22 02:22:12,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:12,974 INFO L93 Difference]: Finished difference Result 342 states and 349 transitions. [2021-02-22 02:22:12,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-22 02:22:12,975 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 72 [2021-02-22 02:22:12,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:12,978 INFO L225 Difference]: With dead ends: 342 [2021-02-22 02:22:12,978 INFO L226 Difference]: Without dead ends: 340 [2021-02-22 02:22:12,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2021-02-22 02:22:12,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-02-22 02:22:13,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 200. [2021-02-22 02:22:13,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-02-22 02:22:13,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 205 transitions. [2021-02-22 02:22:13,042 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 205 transitions. Word has length 72 [2021-02-22 02:22:13,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:13,043 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 205 transitions. [2021-02-22 02:22:13,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:22:13,043 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 205 transitions. [2021-02-22 02:22:13,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-02-22 02:22:13,044 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:13,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:22:13,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 02:22:13,045 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:13,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:13,046 INFO L82 PathProgramCache]: Analyzing trace with hash 808859565, now seen corresponding path program 1 times [2021-02-22 02:22:13,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:13,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069150451] [2021-02-22 02:22:13,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:13,048 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,108 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-22 02:22:13,109 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-22 02:22:13,122 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-22 02:22:13,123 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-22 02:22:13,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:13,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:13,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:13,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:13,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:13,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:13,209 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 02:22:13,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069150451] [2021-02-22 02:22:13,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:13,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:22:13,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182340700] [2021-02-22 02:22:13,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:22:13,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:13,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:22:13,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:22:13,211 INFO L87 Difference]: Start difference. First operand 200 states and 205 transitions. Second operand 8 states. [2021-02-22 02:22:13,889 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2021-02-22 02:22:15,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:15,286 INFO L93 Difference]: Finished difference Result 479 states and 488 transitions. [2021-02-22 02:22:15,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 02:22:15,287 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2021-02-22 02:22:15,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:15,290 INFO L225 Difference]: With dead ends: 479 [2021-02-22 02:22:15,290 INFO L226 Difference]: Without dead ends: 477 [2021-02-22 02:22:15,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-02-22 02:22:15,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-02-22 02:22:15,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 205. [2021-02-22 02:22:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2021-02-22 02:22:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 210 transitions. [2021-02-22 02:22:15,347 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 210 transitions. Word has length 77 [2021-02-22 02:22:15,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:15,347 INFO L480 AbstractCegarLoop]: Abstraction has 205 states and 210 transitions. [2021-02-22 02:22:15,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:22:15,348 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 210 transitions. [2021-02-22 02:22:15,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-02-22 02:22:15,349 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:15,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:22:15,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 02:22:15,349 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:15,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:15,350 INFO L82 PathProgramCache]: Analyzing trace with hash 515755433, now seen corresponding path program 1 times [2021-02-22 02:22:15,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:15,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904945059] [2021-02-22 02:22:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:15,352 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,386 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-22 02:22:15,387 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-22 02:22:15,398 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-22 02:22:15,399 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-22 02:22:15,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:22:15,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:15,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:15,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:15,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:15,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:15,482 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 02:22:15,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904945059] [2021-02-22 02:22:15,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:15,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:22:15,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020544831] [2021-02-22 02:22:15,483 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:22:15,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:15,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:22:15,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:22:15,484 INFO L87 Difference]: Start difference. First operand 205 states and 210 transitions. Second operand 8 states. [2021-02-22 02:22:16,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:16,299 INFO L93 Difference]: Finished difference Result 205 states and 210 transitions. [2021-02-22 02:22:16,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-22 02:22:16,300 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2021-02-22 02:22:16,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:16,301 INFO L225 Difference]: With dead ends: 205 [2021-02-22 02:22:16,301 INFO L226 Difference]: Without dead ends: 203 [2021-02-22 02:22:16,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:22:16,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-02-22 02:22:16,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2021-02-22 02:22:16,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2021-02-22 02:22:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 208 transitions. [2021-02-22 02:22:16,373 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 208 transitions. Word has length 77 [2021-02-22 02:22:16,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:16,373 INFO L480 AbstractCegarLoop]: Abstraction has 203 states and 208 transitions. [2021-02-22 02:22:16,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:22:16,373 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 208 transitions. [2021-02-22 02:22:16,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-22 02:22:16,374 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:16,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:22:16,375 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 02:22:16,375 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:16,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:16,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1890080386, now seen corresponding path program 1 times [2021-02-22 02:22:16,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:16,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058680610] [2021-02-22 02:22:16,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:16,378 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:16,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:16,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:16,412 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-22 02:22:16,413 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-22 02:22:16,424 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-22 02:22:16,425 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-22 02:22:16,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:16,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:22:16,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:16,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:16,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:16,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:16,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:16,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:16,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:16,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:16,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:16,503 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 02:22:16,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058680610] [2021-02-22 02:22:16,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:16,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:22:16,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692948786] [2021-02-22 02:22:16,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:22:16,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:16,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:22:16,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:22:16,506 INFO L87 Difference]: Start difference. First operand 203 states and 208 transitions. Second operand 8 states. [2021-02-22 02:22:17,294 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2021-02-22 02:22:17,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:17,790 INFO L93 Difference]: Finished difference Result 305 states and 311 transitions. [2021-02-22 02:22:17,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-22 02:22:17,790 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2021-02-22 02:22:17,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:17,793 INFO L225 Difference]: With dead ends: 305 [2021-02-22 02:22:17,793 INFO L226 Difference]: Without dead ends: 303 [2021-02-22 02:22:17,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-02-22 02:22:17,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-02-22 02:22:17,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 201. [2021-02-22 02:22:17,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2021-02-22 02:22:17,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 206 transitions. [2021-02-22 02:22:17,858 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 206 transitions. Word has length 82 [2021-02-22 02:22:17,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:17,859 INFO L480 AbstractCegarLoop]: Abstraction has 201 states and 206 transitions. [2021-02-22 02:22:17,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:22:17,859 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 206 transitions. [2021-02-22 02:22:17,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-02-22 02:22:17,860 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:17,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:22:17,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 02:22:17,860 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:17,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:17,861 INFO L82 PathProgramCache]: Analyzing trace with hash 2105037266, now seen corresponding path program 1 times [2021-02-22 02:22:17,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:17,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867914517] [2021-02-22 02:22:17,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:17,863 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:17,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:17,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:17,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:17,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:22:17,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:17,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:17,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:17,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:17,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:17,933 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 02:22:17,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867914517] [2021-02-22 02:22:17,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:17,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:22:17,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023686763] [2021-02-22 02:22:17,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:22:17,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:17,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:22:17,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:22:17,935 INFO L87 Difference]: Start difference. First operand 201 states and 206 transitions. Second operand 4 states. [2021-02-22 02:22:18,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:18,409 INFO L93 Difference]: Finished difference Result 300 states and 306 transitions. [2021-02-22 02:22:18,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 02:22:18,410 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2021-02-22 02:22:18,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:18,411 INFO L225 Difference]: With dead ends: 300 [2021-02-22 02:22:18,411 INFO L226 Difference]: Without dead ends: 201 [2021-02-22 02:22:18,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 02:22:18,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-02-22 02:22:18,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-02-22 02:22:18,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2021-02-22 02:22:18,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 204 transitions. [2021-02-22 02:22:18,471 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 204 transitions. Word has length 83 [2021-02-22 02:22:18,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:18,472 INFO L480 AbstractCegarLoop]: Abstraction has 201 states and 204 transitions. [2021-02-22 02:22:18,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:22:18,472 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 204 transitions. [2021-02-22 02:22:18,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-02-22 02:22:18,473 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:18,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:22:18,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 02:22:18,473 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:18,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:18,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1551491212, now seen corresponding path program 1 times [2021-02-22 02:22:18,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:18,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1517135618] [2021-02-22 02:22:18,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:18,476 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:18,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:18,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:18,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:18,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:22:18,524 WARN L141 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size [2021-02-22 02:22:18,524 WARN L147 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size 3 [2021-02-22 02:22:18,531 WARN L141 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-02-22 02:22:18,532 WARN L147 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size 10 [2021-02-22 02:22:18,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:18,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:18,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:18,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:18,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:18,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:18,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:18,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:18,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:18,617 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 02:22:18,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1517135618] [2021-02-22 02:22:18,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:18,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:22:18,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795593265] [2021-02-22 02:22:18,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:22:18,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:18,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:22:18,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:22:18,620 INFO L87 Difference]: Start difference. First operand 201 states and 204 transitions. Second operand 8 states. [2021-02-22 02:22:19,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:19,376 INFO L93 Difference]: Finished difference Result 201 states and 204 transitions. [2021-02-22 02:22:19,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-22 02:22:19,377 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2021-02-22 02:22:19,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:19,378 INFO L225 Difference]: With dead ends: 201 [2021-02-22 02:22:19,378 INFO L226 Difference]: Without dead ends: 199 [2021-02-22 02:22:19,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-02-22 02:22:19,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-02-22 02:22:19,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-02-22 02:22:19,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2021-02-22 02:22:19,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 202 transitions. [2021-02-22 02:22:19,435 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 202 transitions. Word has length 88 [2021-02-22 02:22:19,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:19,436 INFO L480 AbstractCegarLoop]: Abstraction has 199 states and 202 transitions. [2021-02-22 02:22:19,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:22:19,436 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 202 transitions. [2021-02-22 02:22:19,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-02-22 02:22:19,437 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:19,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:22:19,437 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-22 02:22:19,437 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:19,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:19,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1741429015, now seen corresponding path program 1 times [2021-02-22 02:22:19,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:19,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045314467] [2021-02-22 02:22:19,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:19,440 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:22:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:19,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:19,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:19,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:19,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:22:19,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:19,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:22:19,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:19,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:19,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:19,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:22:19,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:19,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:19,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:22:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:22:19,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:19,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:22:19,545 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 02:22:19,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045314467] [2021-02-22 02:22:19,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:22:19,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 02:22:19,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868475684] [2021-02-22 02:22:19,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 02:22:19,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:22:19,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 02:22:19,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-22 02:22:19,548 INFO L87 Difference]: Start difference. First operand 199 states and 202 transitions. Second operand 7 states. [2021-02-22 02:22:20,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:22:20,182 INFO L93 Difference]: Finished difference Result 199 states and 202 transitions. [2021-02-22 02:22:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-22 02:22:20,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2021-02-22 02:22:20,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:22:20,184 INFO L225 Difference]: With dead ends: 199 [2021-02-22 02:22:20,184 INFO L226 Difference]: Without dead ends: 197 [2021-02-22 02:22:20,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-02-22 02:22:20,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-02-22 02:22:20,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-02-22 02:22:20,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2021-02-22 02:22:20,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 200 transitions. [2021-02-22 02:22:20,259 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 200 transitions. Word has length 93 [2021-02-22 02:22:20,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:22:20,260 INFO L480 AbstractCegarLoop]: Abstraction has 197 states and 200 transitions. [2021-02-22 02:22:20,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 02:22:20,260 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 200 transitions. [2021-02-22 02:22:20,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-02-22 02:22:20,261 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:22:20,261 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:22:20,261 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-22 02:22:20,261 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:22:20,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:22:20,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1480879106, now seen corresponding path program 1 times [2021-02-22 02:22:20,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:22:20,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979512626] [2021-02-22 02:22:20,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:22:20,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:22:20,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:22:20,336 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: cannot bring into simultaneous update form, v_main_~__VERIFIER_assert__cond~16_5 has two outvars in equality [(<= 0 (+ |v_main_#t~nondet11_5| 2147483648)), (< v_main_~__VERIFIER_assert__cond~17_5 0), (< v_main_~main__cp~0_35 v_main_~main__urilen~0_27), (<= |v_main_#t~nondet11_5| 2147483647), (= v_main_~main__cp~0_34 (+ v_main_~main__cp~0_35 1)), (<= 0 v_main_~main__cp~0_35), (> v_main_~main__cp~0_35 (+ v_main_~main__urilen~0_27 (- 1))), (= v_main_~main____CPAchecker_TMP_1~0_5 0), (> v_main_~__VERIFIER_assert__cond~16_5 0), (= v_main_~__tmp_18~0_4 1), (= v_main_~main____CPAchecker_TMP_1~0_5 |v_main_#t~nondet11_5|), (= v_main_~__tmp_18~0_4 v_main_~__VERIFIER_assert__cond~17_5), (= v_main_~__tmp_17~0_4 v_main_~__VERIFIER_assert__cond~16_5), (= v_main_~__tmp_17~0_4 1)] at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.computeSubstitutionMapping(SimultaneousUpdate.java:174) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.extractUpdateRhs(SimultaneousUpdate.java:154) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:104) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.werner.LoopAcceleratorLite.calculateSymbolicMemory(LoopAcceleratorLite.java:167) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.werner.LoopAcceleratorLite.summarizeLoop(LoopAcceleratorLite.java:105) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:52) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-22 02:22:20,339 INFO L168 Benchmark]: Toolchain (without parser) took 15455.16 ms. Allocated memory was 151.0 MB in the beginning and 314.6 MB in the end (delta: 163.6 MB). Free memory was 128.1 MB in the beginning and 221.0 MB in the end (delta: -92.9 MB). Peak memory consumption was 71.6 MB. Max. memory is 8.0 GB. [2021-02-22 02:22:20,342 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:22:20,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.18 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 107.3 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-22 02:22:20,343 INFO L168 Benchmark]: Boogie Preprocessor took 53.11 ms. Allocated memory is still 151.0 MB. Free memory was 107.3 MB in the beginning and 105.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:22:20,343 INFO L168 Benchmark]: RCFGBuilder took 1188.08 ms. Allocated memory is still 151.0 MB. Free memory was 105.4 MB in the beginning and 97.4 MB in the end (delta: 8.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. [2021-02-22 02:22:20,344 INFO L168 Benchmark]: TraceAbstraction took 13772.66 ms. Allocated memory was 151.0 MB in the beginning and 314.6 MB in the end (delta: 163.6 MB). Free memory was 97.4 MB in the beginning and 221.0 MB in the end (delta: -123.6 MB). Peak memory consumption was 41.0 MB. Max. memory is 8.0 GB. [2021-02-22 02:22:20,349 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 423.18 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 107.3 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.11 ms. Allocated memory is still 151.0 MB. Free memory was 107.3 MB in the beginning and 105.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1188.08 ms. Allocated memory is still 151.0 MB. Free memory was 105.4 MB in the beginning and 97.4 MB in the end (delta: 8.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13772.66 ms. Allocated memory was 151.0 MB in the beginning and 314.6 MB in the end (delta: 163.6 MB). Free memory was 97.4 MB in the beginning and 221.0 MB in the end (delta: -123.6 MB). Peak memory consumption was 41.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: cannot bring into simultaneous update form, v_main_~__VERIFIER_assert__cond~16_5 has two outvars in equality [(<= 0 (+ |v_main_#t~nondet11_5| 2147483648)), (< v_main_~__VERIFIER_assert__cond~17_5 0), (< v_main_~main__cp~0_35 v_main_~main__urilen~0_27), (<= |v_main_#t~nondet11_5| 2147483647), (= v_main_~main__cp~0_34 (+ v_main_~main__cp~0_35 1)), (<= 0 v_main_~main__cp~0_35), (> v_main_~main__cp~0_35 (+ v_main_~main__urilen~0_27 (- 1))), (= v_main_~main____CPAchecker_TMP_1~0_5 0), (> v_main_~__VERIFIER_assert__cond~16_5 0), (= v_main_~__tmp_18~0_4 1), (= v_main_~main____CPAchecker_TMP_1~0_5 |v_main_#t~nondet11_5|), (= v_main_~__tmp_18~0_4 v_main_~__VERIFIER_assert__cond~17_5), (= v_main_~__tmp_17~0_4 v_main_~__VERIFIER_assert__cond~16_5), (= v_main_~__tmp_17~0_4 1)] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form, v_main_~__VERIFIER_assert__cond~16_5 has two outvars in equality [(<= 0 (+ |v_main_#t~nondet11_5| 2147483648)), (< v_main_~__VERIFIER_assert__cond~17_5 0), (< v_main_~main__cp~0_35 v_main_~main__urilen~0_27), (<= |v_main_#t~nondet11_5| 2147483647), (= v_main_~main__cp~0_34 (+ v_main_~main__cp~0_35 1)), (<= 0 v_main_~main__cp~0_35), (> v_main_~main__cp~0_35 (+ v_main_~main__urilen~0_27 (- 1))), (= v_main_~main____CPAchecker_TMP_1~0_5 0), (> v_main_~__VERIFIER_assert__cond~16_5 0), (= v_main_~__tmp_18~0_4 1), (= v_main_~main____CPAchecker_TMP_1~0_5 |v_main_#t~nondet11_5|), (= v_main_~__tmp_18~0_4 v_main_~__VERIFIER_assert__cond~17_5), (= v_main_~__tmp_17~0_4 v_main_~__VERIFIER_assert__cond~16_5), (= v_main_~__tmp_17~0_4 1)]: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.computeSubstitutionMapping(SimultaneousUpdate.java:174) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...