/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:32:36,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:32:36,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:32:36,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:32:36,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:32:36,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:32:36,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:32:36,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:32:36,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:32:36,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:32:36,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:32:36,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:32:36,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:32:36,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:32:36,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:32:36,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:32:36,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:32:36,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:32:36,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:32:36,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:32:36,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:32:36,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:32:36,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:32:36,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:32:36,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 18:32:36,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 18:32:36,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 18:32:36,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 18:32:36,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 18:32:36,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 18:32:36,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 18:32:36,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 18:32:36,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 18:32:36,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 18:32:36,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 18:32:36,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 18:32:36,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 18:32:36,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 18:32:36,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:32:36,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:32:36,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:32:36,593 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:32:36,646 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:32:36,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:32:36,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:32:36,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:32:36,652 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:32:36,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:32:36,652 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:32:36,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:32:36,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:32:36,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:32:36,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:32:36,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:32:36,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:32:36,655 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:32:36,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:32:36,655 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:32:36,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:32:36,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:32:36,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:32:36,656 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:32:36,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:32:36,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:32:36,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:32:36,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:32:36,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:32:36,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:32:36,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:32:36,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:32:36,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:32:36,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:32:37,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:32:37,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:32:37,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:32:37,121 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:32:37,122 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:32:37,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label03.c [2020-10-23 18:32:37,196 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b081f3b/490ae4f7c00046549dacaeb3f455be7a/FLAGc52819298 [2020-10-23 18:32:38,028 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:32:38,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label03.c [2020-10-23 18:32:38,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b081f3b/490ae4f7c00046549dacaeb3f455be7a/FLAGc52819298 [2020-10-23 18:32:38,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b081f3b/490ae4f7c00046549dacaeb3f455be7a [2020-10-23 18:32:38,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:32:38,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:32:38,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:32:38,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:32:38,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:32:38,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:32:38" (1/1) ... [2020-10-23 18:32:38,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8ad50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:38, skipping insertion in model container [2020-10-23 18:32:38,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:32:38" (1/1) ... [2020-10-23 18:32:38,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:32:38,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:32:38,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:32:38,862 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:32:38,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:32:39,006 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:32:39,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:39 WrapperNode [2020-10-23 18:32:39,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:32:39,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:32:39,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:32:39,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:32:39,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:39" (1/1) ... [2020-10-23 18:32:39,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:39" (1/1) ... [2020-10-23 18:32:39,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:39" (1/1) ... [2020-10-23 18:32:39,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:39" (1/1) ... [2020-10-23 18:32:39,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:39" (1/1) ... [2020-10-23 18:32:39,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:39" (1/1) ... [2020-10-23 18:32:39,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:39" (1/1) ... [2020-10-23 18:32:39,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:32:39,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:32:39,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:32:39,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:32:39,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:32:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:32:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:32:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:32:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:32:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:32:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:32:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:32:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:32:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:32:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:32:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:32:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:32:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:32:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:32:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:32:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:32:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:32:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:32:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:32:40,548 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:32:40,549 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:32:40,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:32:40 BoogieIcfgContainer [2020-10-23 18:32:40,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:32:40,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:32:40,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:32:40,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:32:40,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:32:38" (1/3) ... [2020-10-23 18:32:40,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6daad0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:32:40, skipping insertion in model container [2020-10-23 18:32:40,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:32:39" (2/3) ... [2020-10-23 18:32:40,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6daad0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:32:40, skipping insertion in model container [2020-10-23 18:32:40,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:32:40" (3/3) ... [2020-10-23 18:32:40,565 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label03.c [2020-10-23 18:32:40,578 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:32:40,584 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:32:40,598 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:32:40,639 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:32:40,639 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:32:40,639 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:32:40,639 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:32:40,640 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:32:40,640 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:32:40,640 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:32:40,640 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:32:40,664 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-23 18:32:40,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-23 18:32:40,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:40,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:32:40,682 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:40,688 INFO L82 PathProgramCache]: Analyzing trace with hash 935698341, now seen corresponding path program 1 times [2020-10-23 18:32:40,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:40,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756867610] [2020-10-23 18:32:40,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:41,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:41,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:32:41,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756867610] [2020-10-23 18:32:41,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:32:41,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:32:41,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899581056] [2020-10-23 18:32:41,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:32:41,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:41,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:32:41,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:32:41,415 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-23 18:32:43,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:43,375 INFO L93 Difference]: Finished difference Result 667 states and 1119 transitions. [2020-10-23 18:32:43,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:32:43,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 136 [2020-10-23 18:32:43,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:43,408 INFO L225 Difference]: With dead ends: 667 [2020-10-23 18:32:43,409 INFO L226 Difference]: Without dead ends: 342 [2020-10-23 18:32:43,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:32:43,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-23 18:32:43,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 338. [2020-10-23 18:32:43,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-23 18:32:43,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 489 transitions. [2020-10-23 18:32:43,578 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 489 transitions. Word has length 136 [2020-10-23 18:32:43,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:43,580 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 489 transitions. [2020-10-23 18:32:43,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:32:43,583 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 489 transitions. [2020-10-23 18:32:43,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-23 18:32:43,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:43,592 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:32:43,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:32:43,596 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:43,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:43,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1085196839, now seen corresponding path program 1 times [2020-10-23 18:32:43,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:43,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157014057] [2020-10-23 18:32:43,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:43,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:43,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:44,046 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:32:44,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157014057] [2020-10-23 18:32:44,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:32:44,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:32:44,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029366999] [2020-10-23 18:32:44,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:32:44,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:44,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:32:44,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:32:44,056 INFO L87 Difference]: Start difference. First operand 338 states and 489 transitions. Second operand 7 states. [2020-10-23 18:32:44,193 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-23 18:32:46,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:46,123 INFO L93 Difference]: Finished difference Result 991 states and 1464 transitions. [2020-10-23 18:32:46,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:32:46,124 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-10-23 18:32:46,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:46,132 INFO L225 Difference]: With dead ends: 991 [2020-10-23 18:32:46,132 INFO L226 Difference]: Without dead ends: 659 [2020-10-23 18:32:46,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:32:46,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2020-10-23 18:32:46,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 643. [2020-10-23 18:32:46,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-10-23 18:32:46,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 883 transitions. [2020-10-23 18:32:46,223 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 883 transitions. Word has length 144 [2020-10-23 18:32:46,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:46,224 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 883 transitions. [2020-10-23 18:32:46,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:32:46,225 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 883 transitions. [2020-10-23 18:32:46,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-23 18:32:46,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:46,230 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:32:46,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:32:46,231 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:46,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:46,233 INFO L82 PathProgramCache]: Analyzing trace with hash 753564000, now seen corresponding path program 1 times [2020-10-23 18:32:46,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:46,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091662320] [2020-10-23 18:32:46,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:46,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:46,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:32:46,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091662320] [2020-10-23 18:32:46,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:32:46,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:32:46,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643412296] [2020-10-23 18:32:46,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:32:46,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:46,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:32:46,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:32:46,534 INFO L87 Difference]: Start difference. First operand 643 states and 883 transitions. Second operand 7 states. [2020-10-23 18:32:46,706 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:32:48,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:48,737 INFO L93 Difference]: Finished difference Result 1925 states and 2786 transitions. [2020-10-23 18:32:48,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:32:48,738 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 147 [2020-10-23 18:32:48,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:48,748 INFO L225 Difference]: With dead ends: 1925 [2020-10-23 18:32:48,749 INFO L226 Difference]: Without dead ends: 1288 [2020-10-23 18:32:48,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:32:48,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2020-10-23 18:32:48,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1256. [2020-10-23 18:32:48,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2020-10-23 18:32:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1691 transitions. [2020-10-23 18:32:48,821 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1691 transitions. Word has length 147 [2020-10-23 18:32:48,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:48,822 INFO L481 AbstractCegarLoop]: Abstraction has 1256 states and 1691 transitions. [2020-10-23 18:32:48,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:32:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1691 transitions. [2020-10-23 18:32:48,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-23 18:32:48,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:48,828 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:32:48,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 18:32:48,828 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:48,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:48,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1967245371, now seen corresponding path program 1 times [2020-10-23 18:32:48,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:48,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338108865] [2020-10-23 18:32:48,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:48,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:48,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:49,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:32:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:49,081 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:32:49,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338108865] [2020-10-23 18:32:49,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296485703] [2020-10-23 18:32:49,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:49,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-23 18:32:49,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:32:49,457 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-23 18:32:49,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:32:49,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-10-23 18:32:49,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248225705] [2020-10-23 18:32:49,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:32:49,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:49,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:32:49,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:32:49,465 INFO L87 Difference]: Start difference. First operand 1256 states and 1691 transitions. Second operand 5 states. [2020-10-23 18:32:50,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:50,696 INFO L93 Difference]: Finished difference Result 3746 states and 5150 transitions. [2020-10-23 18:32:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 18:32:50,697 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-10-23 18:32:50,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:50,713 INFO L225 Difference]: With dead ends: 3746 [2020-10-23 18:32:50,713 INFO L226 Difference]: Without dead ends: 2496 [2020-10-23 18:32:50,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:32:50,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-10-23 18:32:50,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2456. [2020-10-23 18:32:50,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2456 states. [2020-10-23 18:32:50,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 3039 transitions. [2020-10-23 18:32:50,817 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 3039 transitions. Word has length 156 [2020-10-23 18:32:50,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:50,817 INFO L481 AbstractCegarLoop]: Abstraction has 2456 states and 3039 transitions. [2020-10-23 18:32:50,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:32:50,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 3039 transitions. [2020-10-23 18:32:50,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-23 18:32:50,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:50,826 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:32:51,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:51,040 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:51,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:51,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1499467472, now seen corresponding path program 1 times [2020-10-23 18:32:51,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:51,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637932260] [2020-10-23 18:32:51,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:51,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:51,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:51,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:32:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:51,348 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:32:51,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637932260] [2020-10-23 18:32:51,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411152030] [2020-10-23 18:32:51,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:51,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:32:51,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:32:51,751 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:32:51,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:32:51,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-10-23 18:32:51,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242089395] [2020-10-23 18:32:51,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:32:51,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:51,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:32:51,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:32:51,758 INFO L87 Difference]: Start difference. First operand 2456 states and 3039 transitions. Second operand 3 states. [2020-10-23 18:32:52,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:52,584 INFO L93 Difference]: Finished difference Result 5780 states and 7360 transitions. [2020-10-23 18:32:52,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:32:52,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-10-23 18:32:52,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:52,609 INFO L225 Difference]: With dead ends: 5780 [2020-10-23 18:32:52,610 INFO L226 Difference]: Without dead ends: 3330 [2020-10-23 18:32:52,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:32:52,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2020-10-23 18:32:52,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3037. [2020-10-23 18:32:52,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3037 states. [2020-10-23 18:32:52,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 3935 transitions. [2020-10-23 18:32:52,821 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 3935 transitions. Word has length 157 [2020-10-23 18:32:52,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:52,822 INFO L481 AbstractCegarLoop]: Abstraction has 3037 states and 3935 transitions. [2020-10-23 18:32:52,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:32:52,823 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 3935 transitions. [2020-10-23 18:32:52,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-23 18:32:52,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:52,836 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:32:53,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:53,050 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:53,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:53,052 INFO L82 PathProgramCache]: Analyzing trace with hash 685959245, now seen corresponding path program 1 times [2020-10-23 18:32:53,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:53,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330844869] [2020-10-23 18:32:53,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:53,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:53,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:53,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:32:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-23 18:32:53,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330844869] [2020-10-23 18:32:53,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769183508] [2020-10-23 18:32:53,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:53,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:32:53,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:32:53,919 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 18:32:53,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:32:53,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-10-23 18:32:53,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396418088] [2020-10-23 18:32:53,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:32:53,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:53,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:32:53,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:32:53,924 INFO L87 Difference]: Start difference. First operand 3037 states and 3935 transitions. Second operand 3 states. [2020-10-23 18:32:54,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:54,698 INFO L93 Difference]: Finished difference Result 6068 states and 7864 transitions. [2020-10-23 18:32:54,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:32:54,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-10-23 18:32:54,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:54,716 INFO L225 Difference]: With dead ends: 6068 [2020-10-23 18:32:54,716 INFO L226 Difference]: Without dead ends: 3037 [2020-10-23 18:32:54,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:32:54,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2020-10-23 18:32:54,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2313. [2020-10-23 18:32:54,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2313 states. [2020-10-23 18:32:54,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 2725 transitions. [2020-10-23 18:32:54,833 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 2725 transitions. Word has length 171 [2020-10-23 18:32:54,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:54,834 INFO L481 AbstractCegarLoop]: Abstraction has 2313 states and 2725 transitions. [2020-10-23 18:32:54,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:32:54,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 2725 transitions. [2020-10-23 18:32:54,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 18:32:54,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:54,845 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:32:55,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:55,059 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:55,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:55,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1764214155, now seen corresponding path program 1 times [2020-10-23 18:32:55,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:55,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176056253] [2020-10-23 18:32:55,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:55,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:55,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:55,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:32:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:55,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-23 18:32:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:55,431 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-23 18:32:55,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176056253] [2020-10-23 18:32:55,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325578796] [2020-10-23 18:32:55,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:55,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:32:55,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:32:55,694 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 18:32:55,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:32:55,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:32:55,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705269586] [2020-10-23 18:32:55,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:32:55,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:55,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:32:55,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:32:55,697 INFO L87 Difference]: Start difference. First operand 2313 states and 2725 transitions. Second operand 10 states. [2020-10-23 18:33:00,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:00,952 INFO L93 Difference]: Finished difference Result 5903 states and 6996 transitions. [2020-10-23 18:33:00,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 18:33:00,952 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-10-23 18:33:00,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:00,966 INFO L225 Difference]: With dead ends: 5903 [2020-10-23 18:33:00,966 INFO L226 Difference]: Without dead ends: 2560 [2020-10-23 18:33:00,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2020-10-23 18:33:00,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2560 states. [2020-10-23 18:33:01,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2560 to 1532. [2020-10-23 18:33:01,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1532 states. [2020-10-23 18:33:01,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1662 transitions. [2020-10-23 18:33:01,037 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1662 transitions. Word has length 241 [2020-10-23 18:33:01,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:01,038 INFO L481 AbstractCegarLoop]: Abstraction has 1532 states and 1662 transitions. [2020-10-23 18:33:01,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:33:01,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1662 transitions. [2020-10-23 18:33:01,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-23 18:33:01,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:01,045 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:33:01,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:01,259 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:01,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:01,261 INFO L82 PathProgramCache]: Analyzing trace with hash -519388908, now seen corresponding path program 1 times [2020-10-23 18:33:01,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:01,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892211849] [2020-10-23 18:33:01,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:01,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:33:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:01,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:33:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:01,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:33:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:01,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 18:33:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:01,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-23 18:33:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:01,675 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 117 proven. 26 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-23 18:33:01,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892211849] [2020-10-23 18:33:01,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520471293] [2020-10-23 18:33:01,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:01,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:33:01,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:33:01,946 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 100 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-23 18:33:01,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:33:01,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-10-23 18:33:01,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49200475] [2020-10-23 18:33:01,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:33:01,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:33:01,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:33:01,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:33:01,949 INFO L87 Difference]: Start difference. First operand 1532 states and 1662 transitions. Second operand 11 states. [2020-10-23 18:33:03,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:03,419 INFO L93 Difference]: Finished difference Result 2892 states and 3141 transitions. [2020-10-23 18:33:03,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:33:03,420 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 250 [2020-10-23 18:33:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:03,425 INFO L225 Difference]: With dead ends: 2892 [2020-10-23 18:33:03,426 INFO L226 Difference]: Without dead ends: 1065 [2020-10-23 18:33:03,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:33:03,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2020-10-23 18:33:03,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1059. [2020-10-23 18:33:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1059 states. [2020-10-23 18:33:03,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1141 transitions. [2020-10-23 18:33:03,463 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1141 transitions. Word has length 250 [2020-10-23 18:33:03,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:03,464 INFO L481 AbstractCegarLoop]: Abstraction has 1059 states and 1141 transitions. [2020-10-23 18:33:03,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:33:03,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1141 transitions. [2020-10-23 18:33:03,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-23 18:33:03,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:03,470 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:33:03,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:03,685 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:03,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:03,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1595283791, now seen corresponding path program 1 times [2020-10-23 18:33:03,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:03,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055998452] [2020-10-23 18:33:03,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:03,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:33:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:03,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:33:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:03,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:33:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:03,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-23 18:33:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:04,047 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 119 proven. 38 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-23 18:33:04,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055998452] [2020-10-23 18:33:04,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345480616] [2020-10-23 18:33:04,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:04,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:33:04,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:33:04,361 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 102 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-23 18:33:04,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:33:04,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-10-23 18:33:04,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183964215] [2020-10-23 18:33:04,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:33:04,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:33:04,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:33:04,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:33:04,365 INFO L87 Difference]: Start difference. First operand 1059 states and 1141 transitions. Second operand 11 states. [2020-10-23 18:33:07,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:07,507 INFO L93 Difference]: Finished difference Result 2591 states and 2942 transitions. [2020-10-23 18:33:07,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-23 18:33:07,510 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255 [2020-10-23 18:33:07,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:07,520 INFO L225 Difference]: With dead ends: 2591 [2020-10-23 18:33:07,520 INFO L226 Difference]: Without dead ends: 1682 [2020-10-23 18:33:07,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=217, Invalid=595, Unknown=0, NotChecked=0, Total=812 [2020-10-23 18:33:07,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2020-10-23 18:33:07,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1651. [2020-10-23 18:33:07,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1651 states. [2020-10-23 18:33:07,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 1807 transitions. [2020-10-23 18:33:07,577 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 1807 transitions. Word has length 255 [2020-10-23 18:33:07,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:07,577 INFO L481 AbstractCegarLoop]: Abstraction has 1651 states and 1807 transitions. [2020-10-23 18:33:07,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:33:07,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 1807 transitions. [2020-10-23 18:33:07,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-23 18:33:07,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:07,586 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:33:07,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:07,804 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:07,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:07,805 INFO L82 PathProgramCache]: Analyzing trace with hash -185275568, now seen corresponding path program 1 times [2020-10-23 18:33:07,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:07,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051276181] [2020-10-23 18:33:07,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:07,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:33:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:08,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:33:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:08,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-23 18:33:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:08,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-23 18:33:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:08,236 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 245 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-23 18:33:08,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051276181] [2020-10-23 18:33:08,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127942060] [2020-10-23 18:33:08,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:08,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:33:08,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:33:08,488 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-10-23 18:33:08,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:33:08,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-10-23 18:33:08,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103926183] [2020-10-23 18:33:08,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:33:08,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:33:08,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:33:08,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:33:08,490 INFO L87 Difference]: Start difference. First operand 1651 states and 1807 transitions. Second operand 3 states. [2020-10-23 18:33:09,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:09,084 INFO L93 Difference]: Finished difference Result 3589 states and 3989 transitions. [2020-10-23 18:33:09,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:33:09,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 299 [2020-10-23 18:33:09,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:09,086 INFO L225 Difference]: With dead ends: 3589 [2020-10-23 18:33:09,086 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:33:09,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:33:09,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:33:09,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:33:09,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:33:09,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:33:09,094 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 299 [2020-10-23 18:33:09,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:09,095 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:33:09,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:33:09,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:33:09,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:33:09,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-23 18:33:09,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:33:09,969 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 154 [2020-10-23 18:33:10,122 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 154 [2020-10-23 18:33:10,341 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 31 [2020-10-23 18:33:11,721 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 198 DAG size of output: 67 [2020-10-23 18:33:11,894 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-10-23 18:33:12,341 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 50 [2020-10-23 18:33:12,781 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 50 [2020-10-23 18:33:13,125 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 46 [2020-10-23 18:33:13,130 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:33:13,131 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:33:13,131 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:33:13,131 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:33:13,131 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:33:13,131 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~y~0 |old(~y~0)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |old(#t~string7.base)| |#t~string7.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-10-23 18:33:13,132 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:33:13,132 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-23 18:33:13,132 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-23 18:33:13,132 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-23 18:33:13,132 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-23 18:33:13,133 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-23 18:33:13,133 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-23 18:33:13,133 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-23 18:33:13,133 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-23 18:33:13,133 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-23 18:33:13,133 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-23 18:33:13,133 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-23 18:33:13,133 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-23 18:33:13,134 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-23 18:33:13,134 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-23 18:33:13,134 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-23 18:33:13,134 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,134 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,134 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,134 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,134 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,134 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-23 18:33:13,134 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-23 18:33:13,135 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-23 18:33:13,135 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-23 18:33:13,135 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-23 18:33:13,135 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-23 18:33:13,135 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-23 18:33:13,135 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-23 18:33:13,135 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-23 18:33:13,135 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-23 18:33:13,135 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-23 18:33:13,136 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-23 18:33:13,136 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-23 18:33:13,136 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,136 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,136 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,136 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,136 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-23 18:33:13,136 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,136 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-23 18:33:13,137 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-23 18:33:13,137 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-23 18:33:13,137 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-23 18:33:13,137 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-23 18:33:13,137 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-23 18:33:13,137 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-23 18:33:13,137 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-23 18:33:13,137 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-23 18:33:13,137 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-23 18:33:13,138 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-23 18:33:13,138 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-23 18:33:13,138 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-23 18:33:13,138 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-23 18:33:13,138 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-23 18:33:13,138 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,138 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,138 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,138 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,139 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,139 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-23 18:33:13,139 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-23 18:33:13,139 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-23 18:33:13,139 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-23 18:33:13,139 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-23 18:33:13,139 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-23 18:33:13,139 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-23 18:33:13,139 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-23 18:33:13,139 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-23 18:33:13,140 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-23 18:33:13,140 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-23 18:33:13,140 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,140 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,140 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,140 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,140 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,140 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-23 18:33:13,140 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-23 18:33:13,140 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-23 18:33:13,141 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-23 18:33:13,141 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-23 18:33:13,141 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-23 18:33:13,141 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-23 18:33:13,141 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-23 18:33:13,141 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-23 18:33:13,141 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-23 18:33:13,141 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-23 18:33:13,141 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-23 18:33:13,141 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-23 18:33:13,142 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,142 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,142 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,142 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,142 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,142 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-23 18:33:13,142 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-23 18:33:13,142 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-23 18:33:13,142 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-23 18:33:13,142 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-23 18:33:13,143 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-23 18:33:13,143 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-23 18:33:13,143 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-23 18:33:13,143 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-23 18:33:13,143 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,143 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,143 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-23 18:33:13,143 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-23 18:33:13,143 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-23 18:33:13,143 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-23 18:33:13,144 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-23 18:33:13,144 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-23 18:33:13,144 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-23 18:33:13,144 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,144 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,144 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,144 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,144 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-23 18:33:13,144 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,144 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-23 18:33:13,145 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,145 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-23 18:33:13,145 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-23 18:33:13,145 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-23 18:33:13,145 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-23 18:33:13,145 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-23 18:33:13,145 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-23 18:33:13,145 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-23 18:33:13,145 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-23 18:33:13,145 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-23 18:33:13,145 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-23 18:33:13,146 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-23 18:33:13,146 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-23 18:33:13,146 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-23 18:33:13,146 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-23 18:33:13,146 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,146 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,146 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,146 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,146 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,146 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,147 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-23 18:33:13,147 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-23 18:33:13,147 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-23 18:33:13,147 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-23 18:33:13,147 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-23 18:33:13,147 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-23 18:33:13,147 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-23 18:33:13,147 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-23 18:33:13,147 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-23 18:33:13,147 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-23 18:33:13,148 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-23 18:33:13,148 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,148 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,148 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,148 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,148 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,148 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,148 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-23 18:33:13,148 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-23 18:33:13,149 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-23 18:33:13,149 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-23 18:33:13,149 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-23 18:33:13,149 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-23 18:33:13,149 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-23 18:33:13,150 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse14 (= ~a11~0 |old(~a11~0)|)) (.cse2 (= ~a19~0 1)) (.cse1 (= ~a28~0 |old(~a28~0)|)) (.cse18 (= ~a17~0 |old(~a17~0)|)) (.cse3 (= ~a25~0 |old(~a25~0)|)) (.cse15 (= ~a19~0 |old(~a19~0)|))) (let ((.cse5 (not (= 0 |old(~a11~0)|))) (.cse8 (and .cse1 (= ~a25~0 ~a11~0) .cse18 .cse3 .cse15)) (.cse10 (= |old(~a17~0)| |old(~a28~0)|)) (.cse11 (not (= |old(~a11~0)| |old(~a25~0)|))) (.cse7 (not (<= |old(~a17~0)| 7))) (.cse12 (and .cse1 .cse18 .cse14 .cse2 .cse3)) (.cse0 (not (= |old(~a19~0)| 1))) (.cse4 (= ~a17~0 8)) (.cse6 (not (= 8 |old(~a17~0)|))) (.cse17 (not (<= |old(~a28~0)| 7))) (.cse16 (and .cse1 .cse18 .cse14 .cse3 .cse15)) (.cse9 (not (<= |old(~a19~0)| 0))) (.cse13 (not (= |old(~a11~0)| 1)))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 (= ~a11~0 0)) .cse5 .cse6) (or .cse5 .cse7 .cse8 .cse9 .cse10 .cse11) (or .cse0 .cse7 (not (<= 10 |old(~a28~0)|)) .cse12 .cse13) (or (and .cse1 .cse14 .cse3 .cse4 .cse15) .cse5 .cse6 .cse9) (or .cse16 .cse7 .cse9 .cse13) (or .cse0 .cse5 .cse7 .cse12) (or .cse8 .cse9 .cse10 .cse13 .cse11) (or .cse17 .cse0 .cse7 .cse12 .cse13) (or .cse0 (and .cse1 .cse14 .cse2 .cse3 .cse4) .cse6 .cse13) (or .cse17 .cse16 .cse9 .cse13)))) [2020-10-23 18:33:13,150 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-23 18:33:13,150 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-23 18:33:13,150 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-23 18:33:13,150 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-23 18:33:13,150 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-23 18:33:13,150 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-23 18:33:13,150 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-23 18:33:13,151 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,151 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,151 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,151 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,151 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,151 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,151 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-23 18:33:13,151 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-23 18:33:13,151 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-23 18:33:13,152 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-23 18:33:13,152 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-23 18:33:13,152 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-23 18:33:13,152 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-23 18:33:13,152 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-23 18:33:13,152 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-23 18:33:13,152 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-23 18:33:13,152 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-23 18:33:13,152 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-23 18:33:13,153 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-23 18:33:13,153 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,153 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,153 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,153 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,153 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,153 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,153 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-23 18:33:13,153 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-23 18:33:13,154 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-23 18:33:13,154 INFO L270 CegarLoopResult]: At program point L561(line 561) the Hoare annotation is: (let ((.cse6 (not (= 0 |old(~a11~0)|))) (.cse4 (= |old(~a17~0)| |old(~a28~0)|)) (.cse5 (not (= |old(~a11~0)| |old(~a25~0)|))) (.cse3 (not (<= |old(~a19~0)| 0))) (.cse7 (not (= 8 |old(~a17~0)|))) (.cse8 (not (<= |old(~a28~0)| 7))) (.cse0 (not (= |old(~a19~0)| 1))) (.cse1 (not (<= |old(~a17~0)| 7))) (.cse2 (not (= |old(~a11~0)| 1)))) (and (or .cse0 .cse1 (not (<= 10 |old(~a28~0)|)) .cse2) (or .cse3 .cse4 .cse2 .cse5) (or .cse0 .cse6 .cse7) (or .cse0 .cse6 .cse1) (or .cse6 .cse7 .cse3) (or .cse8 .cse3 .cse2) (or .cse6 .cse1 .cse3 .cse4 .cse5) (or .cse1 .cse3 .cse2) (or .cse0 .cse7 .cse2) (or .cse8 .cse0 .cse1 .cse2))) [2020-10-23 18:33:13,154 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-23 18:33:13,154 INFO L274 CegarLoopResult]: For program point L561-1(line 561) no Hoare annotation was computed. [2020-10-23 18:33:13,154 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-23 18:33:13,154 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-23 18:33:13,155 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-23 18:33:13,155 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-23 18:33:13,155 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-23 18:33:13,155 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-23 18:33:13,155 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-23 18:33:13,155 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-23 18:33:13,155 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-23 18:33:13,155 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-23 18:33:13,155 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-23 18:33:13,156 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,156 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,156 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,156 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,156 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:33:13,156 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-23 18:33:13,156 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-23 18:33:13,156 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-23 18:33:13,157 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-23 18:33:13,157 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:33:13,157 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (<= 8 ~a17~0) (= ~a11~0 0) (<= ~a28~0 7) (<= ~a17~0 8)) [2020-10-23 18:33:13,157 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:33:13,157 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:33:13,157 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse3 (<= ~a17~0 8)) (.cse0 (= ~a19~0 1)) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a11~0 1)) (.cse6 (<= ~a28~0 7)) (.cse7 (not (= ~a28~0 ~a17~0))) (.cse8 (= ~a25~0 ~a11~0)) (.cse4 (<= ~a19~0 0)) (.cse2 (= ~a11~0 0)) (.cse5 (<= ~a17~0 7))) (or (and .cse0 (= ~a17~0 8) .cse1) (not (= |old(~a19~0)| 1)) (and .cse0 .cse2 .cse3) (and .cse4 (<= 8 ~a17~0) .cse2 .cse3) (not (= 8 |old(~a17~0)|)) (and (<= 10 ~a28~0) .cse0 .cse1 .cse5) (and .cse0 .cse6 .cse1 .cse5) (and .cse7 .cse8 .cse4 .cse9 .cse1) (not (<= |old(~a28~0)| 7)) (and .cse4 .cse1 .cse5) (not (= 0 |old(~a11~0)|)) (and .cse4 .cse9 .cse1 .cse6) (and .cse7 .cse8 .cse4 .cse2 .cse5) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-23 18:33:13,158 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a11~0)|)) (and (= ~a28~0 |old(~a28~0)|) (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8)) (not (= 8 |old(~a17~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-23 18:33:13,158 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-23 18:33:13,158 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-23 18:33:13,158 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse3 (<= ~a17~0 8)) (.cse0 (= ~a19~0 1)) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a11~0 1)) (.cse6 (<= ~a28~0 7)) (.cse7 (not (= ~a28~0 ~a17~0))) (.cse8 (= ~a25~0 ~a11~0)) (.cse4 (<= ~a19~0 0)) (.cse2 (= ~a11~0 0)) (.cse5 (<= ~a17~0 7))) (or (and .cse0 (= ~a17~0 8) .cse1) (not (= |old(~a19~0)| 1)) (and .cse0 .cse2 .cse3) (and .cse4 (<= 8 ~a17~0) .cse2 .cse3) (not (= 8 |old(~a17~0)|)) (and (<= 10 ~a28~0) .cse0 .cse1 .cse5) (and .cse0 .cse6 .cse1 .cse5) (and .cse7 .cse8 .cse4 .cse9 .cse1) (not (<= |old(~a28~0)| 7)) (and .cse4 .cse1 .cse5) (not (= 0 |old(~a11~0)|)) (and .cse4 .cse9 .cse1 .cse6) (and .cse7 .cse8 .cse4 .cse2 .cse5) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-23 18:33:13,158 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-23 18:33:13,158 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-23 18:33:13,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:33:13 BoogieIcfgContainer [2020-10-23 18:33:13,185 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:33:13,186 INFO L168 Benchmark]: Toolchain (without parser) took 34989.65 ms. Allocated memory was 155.2 MB in the beginning and 557.8 MB in the end (delta: 402.7 MB). Free memory was 127.7 MB in the beginning and 428.0 MB in the end (delta: -300.3 MB). Peak memory consumption was 334.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:13,187 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 125.8 MB. Free memory was 97.4 MB in the beginning and 97.3 MB in the end (delta: 120.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:33:13,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.67 ms. Allocated memory is still 155.2 MB. Free memory was 127.1 MB in the beginning and 126.7 MB in the end (delta: 387.9 kB). Peak memory consumption was 19.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:13,188 INFO L168 Benchmark]: Boogie Preprocessor took 141.39 ms. Allocated memory is still 155.2 MB. Free memory was 126.7 MB in the beginning and 122.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:13,189 INFO L168 Benchmark]: RCFGBuilder took 1401.29 ms. Allocated memory is still 155.2 MB. Free memory was 122.1 MB in the beginning and 99.9 MB in the end (delta: 22.2 MB). Peak memory consumption was 41.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:13,190 INFO L168 Benchmark]: TraceAbstraction took 32630.17 ms. Allocated memory was 155.2 MB in the beginning and 557.8 MB in the end (delta: 402.7 MB). Free memory was 99.9 MB in the beginning and 428.0 MB in the end (delta: -328.1 MB). Peak memory consumption was 305.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:33:13,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 125.8 MB. Free memory was 97.4 MB in the beginning and 97.3 MB in the end (delta: 120.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 800.67 ms. Allocated memory is still 155.2 MB. Free memory was 127.1 MB in the beginning and 126.7 MB in the end (delta: 387.9 kB). Peak memory consumption was 19.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 141.39 ms. Allocated memory is still 155.2 MB. Free memory was 126.7 MB in the beginning and 122.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1401.29 ms. Allocated memory is still 155.2 MB. Free memory was 122.1 MB in the beginning and 99.9 MB in the end (delta: 22.2 MB). Peak memory consumption was 41.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 32630.17 ms. Allocated memory was 155.2 MB in the beginning and 557.8 MB in the end (delta: 402.7 MB). Free memory was 99.9 MB in the beginning and 428.0 MB in the end (delta: -328.1 MB). Peak memory consumption was 305.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: ((((((((((((((a19 == 1 && a17 == 8) && a11 == 1) || !(\old(a19) == 1)) || ((a19 == 1 && a11 == 0) && a17 <= 8)) || (((a19 <= 0 && 8 <= a17) && a11 == 0) && a17 <= 8)) || !(8 == \old(a17))) || (((10 <= a28 && a19 == 1) && a11 == 1) && a17 <= 7)) || (((a19 == 1 && a28 <= 7) && a11 == 1) && a17 <= 7)) || ((((!(a28 == a17) && a25 == a11) && a19 <= 0) && a17 <= \old(a17)) && a11 == 1)) || !(\old(a28) <= 7)) || ((a19 <= 0 && a11 == 1) && a17 <= 7)) || !(0 == \old(a11))) || (((a19 <= 0 && a17 <= \old(a17)) && a11 == 1) && a28 <= 7)) || ((((!(a28 == a17) && a25 == a11) && a19 <= 0) && a11 == 0) && a17 <= 7)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.6s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 19.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 785 SDtfs, 5366 SDslu, 475 SDs, 0 SdLazy, 9092 SolverSat, 1928 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1717 GetRequests, 1603 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3037occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 2174 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 246 PreInvPairs, 292 NumberOfFragments, 872 HoareAnnotationTreeSize, 246 FomulaSimplifications, 43512 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 5763 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 3485 NumberOfCodeBlocks, 3485 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3468 ConstructedInterpolants, 0 QuantifiedInterpolants, 1811428 SizeOfPredicates, 9 NumberOfNonLiveVariables, 4018 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 1630/1719 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...