/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 21:19:22,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 21:19:22,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 21:19:22,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-21 21:19:22,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 21:19:22,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 21:19:22,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 21:19:22,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 21:19:22,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 21:19:22,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 21:19:22,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 21:19:22,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 21:19:22,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 21:19:22,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 21:19:22,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 21:19:22,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 21:19:22,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 21:19:22,232 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 21:19:22,260 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 21:19:22,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 21:19:22,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 21:19:22,267 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 21:19:22,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 21:19:22,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 21:19:22,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 21:19:22,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 21:19:22,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 21:19:22,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 21:19:22,270 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 21:19:22,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 21:19:22,270 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 21:19:22,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 21:19:22,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 21:19:22,271 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 21:19:22,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 21:19:22,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 21:19:22,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:19:22,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 21:19:22,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 21:19:22,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 21:19:22,272 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 21:19:22,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 21:19:22,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 21:19:22,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 21:19:22,735 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 21:19:22,737 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 21:19:22,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2021-02-21 21:19:22,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fae4d981/4d9ca849889747638797234133b2023c/FLAGfe6164233 [2021-02-21 21:19:23,560 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 21:19:23,561 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2021-02-21 21:19:23,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fae4d981/4d9ca849889747638797234133b2023c/FLAGfe6164233 [2021-02-21 21:19:23,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fae4d981/4d9ca849889747638797234133b2023c [2021-02-21 21:19:23,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 21:19:23,945 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 21:19:23,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 21:19:23,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 21:19:23,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 21:19:23,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:19:23" (1/1) ... [2021-02-21 21:19:23,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dfb4ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:23, skipping insertion in model container [2021-02-21 21:19:23,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:19:23" (1/1) ... [2021-02-21 21:19:23,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 21:19:23,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 21:19:24,212 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i[919,932] [2021-02-21 21:19:24,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:19:24,249 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 21:19:24,270 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i[919,932] [2021-02-21 21:19:24,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:19:24,316 INFO L208 MainTranslator]: Completed translation [2021-02-21 21:19:24,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:24 WrapperNode [2021-02-21 21:19:24,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 21:19:24,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 21:19:24,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 21:19:24,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 21:19:24,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:24" (1/1) ... [2021-02-21 21:19:24,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:24" (1/1) ... [2021-02-21 21:19:24,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:24" (1/1) ... [2021-02-21 21:19:24,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:24" (1/1) ... [2021-02-21 21:19:24,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:24" (1/1) ... [2021-02-21 21:19:24,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:24" (1/1) ... [2021-02-21 21:19:24,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:24" (1/1) ... [2021-02-21 21:19:24,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 21:19:24,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 21:19:24,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 21:19:24,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 21:19:24,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:19:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 21:19:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 21:19:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 21:19:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-21 21:19:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 21:19:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 21:19:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 21:19:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 21:19:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-21 21:19:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-21 21:19:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 21:19:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 21:19:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-21 21:19:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 21:19:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-21 21:19:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 21:19:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 21:19:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 21:19:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 21:19:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 21:19:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 21:19:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 21:19:24,970 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 21:19:24,970 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-21 21:19:24,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:19:24 BoogieIcfgContainer [2021-02-21 21:19:24,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 21:19:24,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 21:19:24,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 21:19:24,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 21:19:24,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 09:19:23" (1/3) ... [2021-02-21 21:19:24,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25cce61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:19:24, skipping insertion in model container [2021-02-21 21:19:24,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:24" (2/3) ... [2021-02-21 21:19:24,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25cce61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:19:24, skipping insertion in model container [2021-02-21 21:19:24,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:19:24" (3/3) ... [2021-02-21 21:19:24,985 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2021-02-21 21:19:24,995 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 21:19:25,002 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 21:19:25,027 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 21:19:25,056 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 21:19:25,057 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 21:19:25,057 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 21:19:25,057 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 21:19:25,058 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 21:19:25,058 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 21:19:25,058 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 21:19:25,058 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 21:19:25,079 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2021-02-21 21:19:25,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-02-21 21:19:25,137 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:19:25,141 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-21 21:19:25,142 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:19:25,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:19:25,157 INFO L82 PathProgramCache]: Analyzing trace with hash -917266122, now seen corresponding path program 1 times [2021-02-21 21:19:25,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:19:25,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000535154] [2021-02-21 21:19:25,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:19:25,283 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:19:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:25,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:25,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:25,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:25,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:25,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:25,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 21:19:25,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:25,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-21 21:19:25,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:25,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:25,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:25,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:25,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:25,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:25,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:19:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:25,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:25,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:25,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-21 21:19:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:25,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:25,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:25,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-21 21:19:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:25,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:25,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:19:25,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:25,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:25,677 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-21 21:19:25,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000535154] [2021-02-21 21:19:25,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:19:25,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 21:19:25,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840301350] [2021-02-21 21:19:25,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 21:19:25,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:19:25,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 21:19:25,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-21 21:19:25,707 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 9 states. [2021-02-21 21:19:26,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:19:26,226 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2021-02-21 21:19:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-21 21:19:26,228 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2021-02-21 21:19:26,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:19:26,240 INFO L225 Difference]: With dead ends: 142 [2021-02-21 21:19:26,240 INFO L226 Difference]: Without dead ends: 83 [2021-02-21 21:19:26,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-02-21 21:19:26,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-02-21 21:19:26,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 64. [2021-02-21 21:19:26,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-02-21 21:19:26,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2021-02-21 21:19:26,322 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 34 [2021-02-21 21:19:26,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:19:26,323 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2021-02-21 21:19:26,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 21:19:26,324 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2021-02-21 21:19:26,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-02-21 21:19:26,326 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:19:26,327 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-21 21:19:26,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 21:19:26,327 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:19:26,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:19:26,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1520105862, now seen corresponding path program 1 times [2021-02-21 21:19:26,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:19:26,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257792687] [2021-02-21 21:19:26,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:19:26,333 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:19:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:26,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:26,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:19:26,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:26,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:19:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:26,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:26,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-21 21:19:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:26,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:26,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-21 21:19:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:26,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:26,459 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-21 21:19:26,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257792687] [2021-02-21 21:19:26,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:19:26,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 21:19:26,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737536729] [2021-02-21 21:19:26,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 21:19:26,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:19:26,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 21:19:26,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 21:19:26,464 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand 4 states. [2021-02-21 21:19:26,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:19:26,613 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2021-02-21 21:19:26,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 21:19:26,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2021-02-21 21:19:26,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:19:26,616 INFO L225 Difference]: With dead ends: 95 [2021-02-21 21:19:26,616 INFO L226 Difference]: Without dead ends: 76 [2021-02-21 21:19:26,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 21:19:26,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-02-21 21:19:26,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 64. [2021-02-21 21:19:26,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-02-21 21:19:26,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2021-02-21 21:19:26,632 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 38 [2021-02-21 21:19:26,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:19:26,633 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2021-02-21 21:19:26,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 21:19:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2021-02-21 21:19:26,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-02-21 21:19:26,635 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:19:26,636 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-02-21 21:19:26,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 21:19:26,636 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:19:26,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:19:26,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1768210375, now seen corresponding path program 1 times [2021-02-21 21:19:26,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:19:26,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [599039177] [2021-02-21 21:19:26,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:19:26,641 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:19:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:26,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:26,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:19:26,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 21:19:26,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-21 21:19:26,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 21:19:26,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-21 21:19:26,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-21 21:19:26,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:26,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:26,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:26,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:19:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:26,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:26,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-21 21:19:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:26,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:26,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-21 21:19:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:26,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:19:26,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:26,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:27,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-21 21:19:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:27,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:27,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:27,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 21:19:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:27,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:27,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:27,041 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-21 21:19:27,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [599039177] [2021-02-21 21:19:27,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:19:27,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-21 21:19:27,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045273701] [2021-02-21 21:19:27,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-21 21:19:27,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:19:27,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-21 21:19:27,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-02-21 21:19:27,044 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 12 states. [2021-02-21 21:19:27,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:19:27,600 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2021-02-21 21:19:27,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-21 21:19:27,601 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2021-02-21 21:19:27,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:19:27,603 INFO L225 Difference]: With dead ends: 88 [2021-02-21 21:19:27,603 INFO L226 Difference]: Without dead ends: 86 [2021-02-21 21:19:27,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2021-02-21 21:19:27,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-02-21 21:19:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 63. [2021-02-21 21:19:27,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-02-21 21:19:27,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2021-02-21 21:19:27,620 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 56 [2021-02-21 21:19:27,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:19:27,621 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2021-02-21 21:19:27,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-21 21:19:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2021-02-21 21:19:27,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-02-21 21:19:27,622 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:19:27,623 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-02-21 21:19:27,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 21:19:27,623 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:19:27,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:19:27,624 INFO L82 PathProgramCache]: Analyzing trace with hash -2085456757, now seen corresponding path program 1 times [2021-02-21 21:19:27,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:19:27,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368193352] [2021-02-21 21:19:27,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:19:27,627 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:19:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:27,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:27,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:27,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:27,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:19:27,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:27,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 21:19:27,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:27,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-21 21:19:28,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:28,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-21 21:19:28,020 WARN L141 QuantifierPusher]: treesize reduction 102, result has 36.3 percent of original size [2021-02-21 21:19:28,021 WARN L147 QuantifierPusher]: treesize reduction 102, result has 36.3 percent of original size 58 [2021-02-21 21:19:28,056 WARN L141 QuantifierPusher]: treesize reduction 179, result has 29.2 percent of original size [2021-02-21 21:19:28,057 WARN L147 QuantifierPusher]: treesize reduction 179, result has 29.2 percent of original size 74 [2021-02-21 21:19:28,104 WARN L141 QuantifierPusher]: treesize reduction 642, result has 21.2 percent of original size [2021-02-21 21:19:28,105 WARN L147 QuantifierPusher]: treesize reduction 642, result has 21.2 percent of original size 173 [2021-02-21 21:19:28,152 WARN L141 QuantifierPusher]: treesize reduction 237, result has 45.4 percent of original size [2021-02-21 21:19:28,154 WARN L147 QuantifierPusher]: treesize reduction 237, result has 45.4 percent of original size 197 [2021-02-21 21:19:28,296 WARN L141 QuantifierPusher]: treesize reduction 935, result has 22.0 percent of original size [2021-02-21 21:19:28,300 WARN L147 QuantifierPusher]: treesize reduction 935, result has 22.0 percent of original size 263 [2021-02-21 21:19:28,386 WARN L141 QuantifierPusher]: treesize reduction 259, result has 43.4 percent of original size [2021-02-21 21:19:28,388 WARN L147 QuantifierPusher]: treesize reduction 259, result has 43.4 percent of original size 199 [2021-02-21 21:19:28,458 WARN L141 QuantifierPusher]: treesize reduction 439, result has 47.0 percent of original size [2021-02-21 21:19:28,462 WARN L147 QuantifierPusher]: treesize reduction 439, result has 47.0 percent of original size 389 [2021-02-21 21:19:28,572 WARN L141 QuantifierPusher]: treesize reduction 439, result has 45.8 percent of original size [2021-02-21 21:19:28,576 WARN L147 QuantifierPusher]: treesize reduction 439, result has 45.8 percent of original size 371 [2021-02-21 21:19:28,614 WARN L141 QuantifierPusher]: treesize reduction 397, result has 44.5 percent of original size [2021-02-21 21:19:28,615 WARN L147 QuantifierPusher]: treesize reduction 397, result has 44.5 percent of original size 318 [2021-02-21 21:19:28,703 WARN L141 QuantifierPusher]: treesize reduction 23, result has 89.9 percent of original size [2021-02-21 21:19:28,707 WARN L147 QuantifierPusher]: treesize reduction 23, result has 89.9 percent of original size 205 [2021-02-21 21:19:28,781 WARN L141 QuantifierPusher]: treesize reduction 32, result has 67.3 percent of original size [2021-02-21 21:19:28,784 WARN L147 QuantifierPusher]: treesize reduction 32, result has 67.3 percent of original size 66 [2021-02-21 21:19:28,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:28,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:28,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:28,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:28,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:28,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:28,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:19:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:28,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:28,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:28,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-21 21:19:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:28,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:28,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:28,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-21 21:19:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:28,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:28,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:19:28,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:28,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:28,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-21 21:19:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:28,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:28,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:28,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 21:19:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:29,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:29,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:19:29,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:29,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:29,033 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-21 21:19:29,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368193352] [2021-02-21 21:19:29,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:19:29,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-21 21:19:29,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895925938] [2021-02-21 21:19:29,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-21 21:19:29,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:19:29,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-21 21:19:29,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-02-21 21:19:29,036 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 19 states. [2021-02-21 21:19:30,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:19:30,426 INFO L93 Difference]: Finished difference Result 104 states and 111 transitions. [2021-02-21 21:19:30,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-02-21 21:19:30,427 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 60 [2021-02-21 21:19:30,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:19:30,429 INFO L225 Difference]: With dead ends: 104 [2021-02-21 21:19:30,430 INFO L226 Difference]: Without dead ends: 102 [2021-02-21 21:19:30,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=142, Invalid=850, Unknown=0, NotChecked=0, Total=992 [2021-02-21 21:19:30,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-02-21 21:19:30,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 90. [2021-02-21 21:19:30,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2021-02-21 21:19:30,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2021-02-21 21:19:30,455 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 60 [2021-02-21 21:19:30,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:19:30,456 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2021-02-21 21:19:30,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-21 21:19:30,456 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2021-02-21 21:19:30,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-02-21 21:19:30,458 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:19:30,458 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-02-21 21:19:30,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 21:19:30,458 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:19:30,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:19:30,459 INFO L82 PathProgramCache]: Analyzing trace with hash -720048287, now seen corresponding path program 1 times [2021-02-21 21:19:30,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:19:30,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620976615] [2021-02-21 21:19:30,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:19:30,462 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:19:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:30,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:30,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:19:30,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 21:19:30,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-21 21:19:30,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-21 21:19:30,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-21 21:19:30,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 21:19:30,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 21:19:30,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 21:19:30,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-21 21:19:30,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-21 21:19:30,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-21 21:19:30,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:30,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:19:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:30,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:30,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-21 21:19:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:30,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:30,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-21 21:19:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:30,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:30,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-21 21:19:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:30,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:30,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 21:19:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:30,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:30,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-21 21:19:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:30,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:30,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:30,881 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-02-21 21:19:30,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620976615] [2021-02-21 21:19:30,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:19:30,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 21:19:30,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479630219] [2021-02-21 21:19:30,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 21:19:30,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:19:30,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 21:19:30,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-02-21 21:19:30,884 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand 10 states. [2021-02-21 21:19:31,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:19:31,975 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2021-02-21 21:19:31,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-21 21:19:31,975 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2021-02-21 21:19:31,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:19:31,977 INFO L225 Difference]: With dead ends: 109 [2021-02-21 21:19:31,977 INFO L226 Difference]: Without dead ends: 71 [2021-02-21 21:19:31,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-02-21 21:19:31,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-02-21 21:19:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-02-21 21:19:31,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2021-02-21 21:19:32,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2021-02-21 21:19:32,000 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 76 [2021-02-21 21:19:32,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:19:32,001 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2021-02-21 21:19:32,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 21:19:32,001 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2021-02-21 21:19:32,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-21 21:19:32,003 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:19:32,003 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2021-02-21 21:19:32,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 21:19:32,003 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:19:32,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:19:32,004 INFO L82 PathProgramCache]: Analyzing trace with hash 929337308, now seen corresponding path program 2 times [2021-02-21 21:19:32,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:19:32,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318517645] [2021-02-21 21:19:32,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:19:32,007 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:19:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:32,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:32,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:32,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:32,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:19:32,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:32,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 21:19:32,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:32,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-21 21:19:32,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:32,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-21 21:19:32,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:32,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-21 21:19:32,518 WARN L141 QuantifierPusher]: treesize reduction 20, result has 77.3 percent of original size [2021-02-21 21:19:32,519 WARN L147 QuantifierPusher]: treesize reduction 20, result has 77.3 percent of original size 68 [2021-02-21 21:19:32,573 WARN L141 QuantifierPusher]: treesize reduction 20, result has 75.6 percent of original size [2021-02-21 21:19:32,574 WARN L147 QuantifierPusher]: treesize reduction 20, result has 75.6 percent of original size 62 [2021-02-21 21:19:32,628 WARN L141 QuantifierPusher]: treesize reduction 48, result has 62.2 percent of original size [2021-02-21 21:19:32,629 WARN L147 QuantifierPusher]: treesize reduction 48, result has 62.2 percent of original size 79 [2021-02-21 21:19:32,685 WARN L141 QuantifierPusher]: treesize reduction 89, result has 53.4 percent of original size [2021-02-21 21:19:32,688 WARN L147 QuantifierPusher]: treesize reduction 89, result has 53.4 percent of original size 102 [2021-02-21 21:19:32,752 WARN L141 QuantifierPusher]: treesize reduction 174, result has 48.2 percent of original size [2021-02-21 21:19:32,755 WARN L147 QuantifierPusher]: treesize reduction 174, result has 48.2 percent of original size 162 [2021-02-21 21:19:32,865 WARN L141 QuantifierPusher]: treesize reduction 138, result has 69.5 percent of original size [2021-02-21 21:19:32,874 WARN L147 QuantifierPusher]: treesize reduction 138, result has 69.5 percent of original size 315 [2021-02-21 21:19:33,035 WARN L141 QuantifierPusher]: treesize reduction 142, result has 86.0 percent of original size [2021-02-21 21:19:33,041 WARN L147 QuantifierPusher]: treesize reduction 142, result has 86.0 percent of original size 873 [2021-02-21 21:19:33,271 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 40 [2021-02-21 21:19:33,281 WARN L141 QuantifierPusher]: treesize reduction 243, result has 56.2 percent of original size [2021-02-21 21:19:33,284 WARN L147 QuantifierPusher]: treesize reduction 243, result has 56.2 percent of original size 312 [2021-02-21 21:19:33,446 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 46 [2021-02-21 21:19:33,473 WARN L141 QuantifierPusher]: treesize reduction 121, result has 91.6 percent of original size [2021-02-21 21:19:33,490 WARN L147 QuantifierPusher]: treesize reduction 121, result has 91.6 percent of original size 1325 [2021-02-21 21:19:33,818 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 56 [2021-02-21 21:19:33,826 WARN L141 QuantifierPusher]: treesize reduction 234, result has 50.1 percent of original size [2021-02-21 21:19:33,829 WARN L147 QuantifierPusher]: treesize reduction 234, result has 50.1 percent of original size 235 [2021-02-21 21:19:34,025 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2021-02-21 21:19:34,036 WARN L141 QuantifierPusher]: treesize reduction 92, result has 89.2 percent of original size [2021-02-21 21:19:34,041 WARN L147 QuantifierPusher]: treesize reduction 92, result has 89.2 percent of original size 762 [2021-02-21 21:19:34,302 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 73 [2021-02-21 21:19:34,310 WARN L141 QuantifierPusher]: treesize reduction 82, result has 90.1 percent of original size [2021-02-21 21:19:34,313 WARN L147 QuantifierPusher]: treesize reduction 82, result has 90.1 percent of original size 744 [2021-02-21 21:19:34,398 WARN L141 QuantifierPusher]: treesize reduction 47, result has 93.4 percent of original size [2021-02-21 21:19:34,402 WARN L147 QuantifierPusher]: treesize reduction 47, result has 93.4 percent of original size 667 [2021-02-21 21:19:34,600 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-02-21 21:19:34,604 WARN L141 QuantifierPusher]: treesize reduction 23, result has 89.9 percent of original size [2021-02-21 21:19:34,606 WARN L147 QuantifierPusher]: treesize reduction 23, result has 89.9 percent of original size 205 [2021-02-21 21:19:34,697 WARN L141 QuantifierPusher]: treesize reduction 32, result has 67.3 percent of original size [2021-02-21 21:19:34,699 WARN L147 QuantifierPusher]: treesize reduction 32, result has 67.3 percent of original size 66 [2021-02-21 21:19:34,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:34,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:34,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:34,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:34,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:34,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:34,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:19:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:34,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:34,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:34,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-21 21:19:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:34,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:34,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:34,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-21 21:19:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:34,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:34,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:19:34,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:34,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:34,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-21 21:19:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:34,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:34,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:34,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-21 21:19:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:34,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:34,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:34,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-21 21:19:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:34,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:34,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:34,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-21 21:19:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:34,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:34,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:19:34,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:34,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:35,066 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-02-21 21:19:35,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318517645] [2021-02-21 21:19:35,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:19:35,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-02-21 21:19:35,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163186626] [2021-02-21 21:19:35,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-02-21 21:19:35,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:19:35,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-02-21 21:19:35,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2021-02-21 21:19:35,070 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand 24 states. [2021-02-21 21:19:36,610 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-02-21 21:19:37,062 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2021-02-21 21:19:39,734 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 66 [2021-02-21 21:19:40,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:19:40,491 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2021-02-21 21:19:40,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-21 21:19:40,500 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 82 [2021-02-21 21:19:40,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:19:40,501 INFO L225 Difference]: With dead ends: 71 [2021-02-21 21:19:40,501 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 21:19:40,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=255, Invalid=1467, Unknown=0, NotChecked=0, Total=1722 [2021-02-21 21:19:40,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 21:19:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 21:19:40,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 21:19:40,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 21:19:40,504 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 82 [2021-02-21 21:19:40,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:19:40,504 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 21:19:40,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-02-21 21:19:40,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 21:19:40,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 21:19:40,505 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 21:19:40,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 21:19:43,162 WARN L202 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-02-21 21:19:43,725 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-02-21 21:19:43,859 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2021-02-21 21:19:46,076 WARN L202 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 73 DAG size of output: 47 [2021-02-21 21:19:48,155 WARN L202 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2021-02-21 21:19:48,547 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2021-02-21 21:19:48,686 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2021-02-21 21:19:49,033 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2021-02-21 21:19:49,038 INFO L189 CegarLoopUtils]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-02-21 21:19:49,039 INFO L189 CegarLoopUtils]: For program point L18-2(line 18) no Hoare annotation was computed. [2021-02-21 21:19:49,039 INFO L189 CegarLoopUtils]: For program point L18-3(line 18) no Hoare annotation was computed. [2021-02-21 21:19:49,039 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 18) no Hoare annotation was computed. [2021-02-21 21:19:49,039 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 18) no Hoare annotation was computed. [2021-02-21 21:19:49,040 INFO L192 CegarLoopUtils]: At program point L18-1(line 18) the Hoare annotation is: true [2021-02-21 21:19:49,040 INFO L192 CegarLoopUtils]: At program point L18-2(line 18) the Hoare annotation is: true [2021-02-21 21:19:49,040 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 21:19:49,040 INFO L192 CegarLoopUtils]: At program point L18-3(line 18) the Hoare annotation is: true [2021-02-21 21:19:49,040 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-21 21:19:49,040 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 18) the Hoare annotation is: true [2021-02-21 21:19:49,041 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-02-21 21:19:49,041 INFO L192 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: true [2021-02-21 21:19:49,041 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-21 21:19:49,041 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-21 21:19:49,041 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 21:19:49,041 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 21:19:49,041 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-21 21:19:49,043 INFO L192 CegarLoopUtils]: At program point assume_abort_if_notENTRY(lines 20 22) the Hoare annotation is: true [2021-02-21 21:19:49,043 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) [2021-02-21 21:19:49,043 INFO L185 CegarLoopUtils]: At program point L21-1(line 21) the Hoare annotation is: (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) [2021-02-21 21:19:49,043 INFO L185 CegarLoopUtils]: At program point L21-3(lines 20 22) the Hoare annotation is: (and (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) (not (= |assume_abort_if_not_#in~cond| 0))) [2021-02-21 21:19:49,043 INFO L185 CegarLoopUtils]: At program point assume_abort_if_notEXIT(lines 20 22) the Hoare annotation is: (and (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) (not (= |assume_abort_if_not_#in~cond| 0))) [2021-02-21 21:19:49,044 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 33 61) the Hoare annotation is: true [2021-02-21 21:19:49,045 INFO L185 CegarLoopUtils]: At program point L56(line 56) the Hoare annotation is: (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) [2021-02-21 21:19:49,046 INFO L185 CegarLoopUtils]: At program point L56-1(line 56) the Hoare annotation is: (let ((.cse0 (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296)) (.cse1 (* main_~index1~0 (- 1)))) (and (<= |main_#t~post11| (+ (* 4294967296 (div (+ |main_#t~post11| .cse0 .cse1 1) 4294967296)) 4294967294)) (<= main_~index2~0 (+ (* 4294967296 (div (+ .cse0 main_~index2~0 .cse1 1) 4294967296)) 4294967294)))) [2021-02-21 21:19:49,047 INFO L185 CegarLoopUtils]: At program point L56-2(line 56) the Hoare annotation is: (and (<= |main_#t~post11| (+ (* 4294967296 (div (+ |main_#t~post11| (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) (<= (+ (* 4294967296 (div (+ (* (div main_~index2~0 4294967296) 4294967296) (* main_~index2~0 (- 1)) main_~index1~0 4294967295) 4294967296)) 1) main_~index1~0)) [2021-02-21 21:19:49,047 INFO L185 CegarLoopUtils]: At program point L48(line 48) the Hoare annotation is: (let ((.cse5 (div main_~index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse5)) (.cse4 (div main_~index1~0 4294967296))) (and (<= main_~index2~0 (+ .cse0 99999)) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse1 (select .cse3 (+ (* .cse5 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (<= .cse1 (let ((.cse2 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (+ .cse2 (* 4294967296 (div (+ (* .cse2 (- 1)) .cse1) 4294967296))))))) (<= (+ .cse0 main_~index1~0 1) (+ (* 4294967296 .cse4) main_~index2~0))))) [2021-02-21 21:19:49,047 INFO L185 CegarLoopUtils]: At program point L48-1(line 48) the Hoare annotation is: (let ((.cse8 (div main_~index2~0 4294967296))) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|)) (.cse4 (* .cse8 (- 17179869184))) (.cse5 (* main_~index2~0 4))) (let ((.cse1 (select .cse3 (+ .cse4 .cse5 |main_~#array~0.offset|))) (.cse0 (* 4294967296 .cse8)) (.cse7 (div main_~index1~0 4294967296))) (and (<= main_~index2~0 (+ .cse0 99999)) (or (<= (let ((.cse2 (select .cse3 (+ .cse4 .cse5 |main_~#array~0.offset| (- 4))))) (+ (* 4294967296 (div (+ .cse1 (* .cse2 (- 1)) 4294967295) 4294967296)) .cse2)) .cse1) (< (+ .cse0 |main_#t~post7| 1) (+ (* 4294967296 (div |main_#t~post7| 4294967296)) main_~index2~0))) (<= .cse1 (let ((.cse6 (select .cse3 (+ (* .cse7 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (+ .cse6 (* 4294967296 (div (+ (* .cse6 (- 1)) .cse1) 4294967296))))) (<= (+ .cse0 main_~index1~0 1) (+ (* 4294967296 .cse7) main_~index2~0)) (<= (* 4294967296 (div (+ (* .cse8 4294967296) |main_#t~post7| (* main_~index2~0 (- 1)) 4294967296) 4294967296)) |main_#t~post7|))))) [2021-02-21 21:19:49,048 INFO L185 CegarLoopUtils]: At program point L48-2(line 48) the Hoare annotation is: (let ((.cse11 (div main_~index2~0 4294967296))) (let ((.cse5 (select |#memory_int| |main_~#array~0.base|)) (.cse7 (* .cse11 (- 17179869184))) (.cse8 (* main_~index2~0 4))) (let ((.cse4 (select .cse5 (+ .cse7 .cse8 |main_~#array~0.offset| (- 4))))) (let ((.cse3 (* .cse4 (- 1))) (.cse0 (* 4294967296 .cse11)) (.cse9 (* .cse11 4294967296)) (.cse10 (* main_~index2~0 (- 1)))) (and (let ((.cse1 (div main_~index1~0 4294967296))) (or (< (+ .cse0 main_~index1~0) (+ (* 4294967296 .cse1) main_~index2~0)) (let ((.cse2 (select .cse5 (+ (* .cse1 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (+ (* 4294967296 (div (+ .cse2 .cse3 4294967295) 4294967296)) .cse4) .cse2)))) (<= main_~index2~0 (+ .cse0 99999)) (or (let ((.cse6 (select .cse5 (+ .cse7 .cse8 |main_~#array~0.offset|)))) (<= (+ (* 4294967296 (div (+ .cse6 .cse3 4294967295) 4294967296)) .cse4) .cse6)) (< (+ .cse0 |main_#t~post7| 1) (+ (* 4294967296 (div |main_#t~post7| 4294967296)) main_~index2~0))) (<= (+ (* 4294967296 (div (+ .cse9 .cse10 main_~index1~0 4294967295) 4294967296)) 1) main_~index1~0) (<= (* 4294967296 (div (+ .cse9 |main_#t~post7| .cse10 4294967296) 4294967296)) |main_#t~post7|)))))) [2021-02-21 21:19:49,048 INFO L185 CegarLoopUtils]: At program point L40(line 40) the Hoare annotation is: (= main_~loop_entered~0 0) [2021-02-21 21:19:49,048 INFO L185 CegarLoopUtils]: At program point L40-1(line 40) the Hoare annotation is: (= main_~loop_entered~0 0) [2021-02-21 21:19:49,050 INFO L185 CegarLoopUtils]: At program point L57(line 57) the Hoare annotation is: (<= (+ (* 4294967296 (div (+ (* (div main_~index2~0 4294967296) 4294967296) (* main_~index2~0 (- 1)) main_~index1~0 4294967295) 4294967296)) 1) main_~index1~0) [2021-02-21 21:19:49,050 INFO L185 CegarLoopUtils]: At program point L57-1(line 57) the Hoare annotation is: (let ((.cse0 (* (div main_~index2~0 4294967296) 4294967296)) (.cse1 (* main_~index2~0 (- 1)))) (and (<= (+ (* 4294967296 (div (+ .cse0 |main_#t~post12| .cse1 4294967295) 4294967296)) 1) |main_#t~post12|) (<= (+ (* 4294967296 (div (+ .cse0 .cse1 main_~index1~0 4294967295) 4294967296)) 1) main_~index1~0))) [2021-02-21 21:19:49,051 INFO L185 CegarLoopUtils]: At program point L57-2(line 57) the Hoare annotation is: (let ((.cse0 (div main_~index2~0 4294967296))) (and (<= (+ (* 4294967296 (div (+ (* .cse0 4294967296) |main_#t~post12| (* main_~index2~0 (- 1)) 4294967295) 4294967296)) 1) |main_#t~post12|) (<= (+ (* 4294967296 .cse0) main_~index1~0 1) (+ (* 4294967296 (div main_~index1~0 4294967296)) main_~index2~0)))) [2021-02-21 21:19:49,051 INFO L192 CegarLoopUtils]: At program point L53(lines 53 59) the Hoare annotation is: true [2021-02-21 21:19:49,051 INFO L185 CegarLoopUtils]: At program point L49(line 49) the Hoare annotation is: (let ((.cse5 (div main_~index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse5))) (and (let ((.cse1 (div main_~index1~0 4294967296))) (or (< (+ .cse0 main_~index1~0) (+ (* 4294967296 .cse1) main_~index2~0)) (let ((.cse4 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse2 (select .cse4 (+ (* .cse1 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse3 (select .cse4 (+ (* .cse5 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset| (- 4))))) (+ (* 4294967296 (div (+ .cse2 (* .cse3 (- 1)) 4294967295) 4294967296)) .cse3)) .cse2))))) (<= main_~index2~0 (+ .cse0 99999)) (<= (+ (* 4294967296 (div (+ (* .cse5 4294967296) (* main_~index2~0 (- 1)) main_~index1~0 4294967295) 4294967296)) 1) main_~index1~0)))) [2021-02-21 21:19:49,052 INFO L185 CegarLoopUtils]: At program point L49-1(line 49) the Hoare annotation is: (let ((.cse6 (select |#memory_int| |main_~#array~0.base|)) (.cse0 (div main_~index1~0 4294967296)) (.cse3 (* main_~index1~0 4))) (let ((.cse7 (* main_~index1~0 (- 1))) (.cse4 (select .cse6 (+ (* .cse0 (- 17179869184)) .cse3 |main_~#array~0.offset|))) (.cse2 (div main_~index2~0 4294967296))) (and (let ((.cse1 (* main_~index2~0 4))) (or (not (= (+ (* .cse0 17179869184) .cse1) (+ (* .cse2 17179869184) .cse3))) (<= .cse4 (let ((.cse5 (select .cse6 (+ (* .cse2 (- 17179869184)) .cse1 |main_~#array~0.offset| (- 4))))) (+ .cse5 (* 4294967296 (div (+ .cse4 (* .cse5 (- 1))) 4294967296))))))) (<= main_~index2~0 (+ (* 4294967296 .cse2) 99999)) (<= |main_#t~post8| (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) |main_#t~post8| .cse7) 4294967296)) 99999)) (or (<= |main_#t~post8| (+ (* 4294967296 (div (+ |main_#t~post8| (* .cse0 4294967296) .cse7 (- 1)) 4294967296)) 4294967295)) (<= (let ((.cse8 (select .cse6 (+ (* |main_#t~post8| 4) (* (div |main_#t~post8| 4294967296) (- 17179869184)) |main_~#array~0.offset| (- 4))))) (+ (* 4294967296 (div (+ .cse4 (* .cse8 (- 1)) 4294967295) 4294967296)) .cse8)) .cse4)) (<= (+ (* 4294967296 (div (+ (* .cse2 4294967296) (* main_~index2~0 (- 1)) main_~index1~0 4294967295) 4294967296)) 1) main_~index1~0)))) [2021-02-21 21:19:49,052 INFO L185 CegarLoopUtils]: At program point L49-2(line 49) the Hoare annotation is: (let ((.cse3 (select |#memory_int| |main_~#array~0.base|)) (.cse5 (div main_~index1~0 4294967296)) (.cse4 (div main_~index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse4)) (.cse6 (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296)) (.cse7 (* main_~index1~0 (- 1))) (.cse2 (select .cse3 (+ (* .cse5 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (and (<= main_~index2~0 (+ .cse0 99998)) (or (<= (let ((.cse1 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse1 (* 4294967296 (div (+ .cse2 (* .cse1 (- 1)) 4294967295) 4294967296)))) .cse2) (<= (+ .cse0 main_~index1~0) (+ (* 4294967296 .cse5) main_~index2~0))) (<= main_~index2~0 (+ (* 4294967296 (div (+ .cse6 main_~index2~0 .cse7 1) 4294967296)) 4294967294)) (<= |main_#t~post8| (+ (* 4294967296 (div (+ .cse6 |main_#t~post8| .cse7) 4294967296)) 99999)) (or (<= |main_#t~post8| (+ (* 4294967296 (div (+ |main_#t~post8| (* .cse5 4294967296) .cse7 (- 1)) 4294967296)) 4294967295)) (<= (let ((.cse8 (select .cse3 (+ (* |main_#t~post8| 4) (* (div |main_#t~post8| 4294967296) (- 17179869184)) |main_~#array~0.offset| (- 4))))) (+ (* 4294967296 (div (+ .cse2 (* .cse8 (- 1)) 4294967295) 4294967296)) .cse8)) .cse2))))) [2021-02-21 21:19:49,053 INFO L185 CegarLoopUtils]: At program point L45-1(lines 43 51) the Hoare annotation is: (let ((.cse4 (div main_~index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse4))) (or (and (<= main_~index2~0 (+ .cse0 99998)) (let ((.cse5 (div main_~index1~0 4294967296))) (or (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse2 (select .cse3 (+ (* .cse5 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse1 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse1 (* 4294967296 (div (+ .cse2 (* .cse1 (- 1)) 4294967295) 4294967296)))) .cse2))) (<= (+ .cse0 main_~index1~0) (+ (* 4294967296 .cse5) main_~index2~0)))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294))) (and (<= main_~index2~0 (+ .cse0 99999)) (= main_~loop_entered~0 0))))) [2021-02-21 21:19:49,053 INFO L185 CegarLoopUtils]: At program point L45-2(lines 34 61) the Hoare annotation is: (or (let ((.cse0 (div main_~index2~0 4294967296))) (and (<= main_~index2~0 (+ (* 4294967296 .cse0) 99998)) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse2 (select .cse3 (+ (* (div main_~index1~0 4294967296) (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse1 (select .cse3 (+ (* .cse0 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse1 (* 4294967296 (div (+ .cse2 (* .cse1 (- 1)) 4294967295) 4294967296)))) .cse2))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)))) (= main_~loop_entered~0 0)) [2021-02-21 21:19:49,053 INFO L185 CegarLoopUtils]: At program point L41(line 41) the Hoare annotation is: (= main_~loop_entered~0 0) [2021-02-21 21:19:49,054 INFO L185 CegarLoopUtils]: At program point L41-1(line 41) the Hoare annotation is: (= main_~loop_entered~0 0) [2021-02-21 21:19:49,054 INFO L192 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: true [2021-02-21 21:19:49,054 INFO L185 CegarLoopUtils]: At program point L54-2(lines 54 58) the Hoare annotation is: (let ((.cse5 (div main_~index1~0 4294967296))) (let ((.cse4 (div main_~index2~0 4294967296)) (.cse0 (* 4294967296 .cse5))) (or (and (<= main_~index1~0 (+ .cse0 100000)) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse2 (select .cse3 (+ (* .cse5 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse1 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse1 (* 4294967296 (div (+ .cse2 (* .cse1 (- 1)) 4294967295) 4294967296)))) .cse2))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294))) (<= (+ (* 4294967296 .cse4) main_~index1~0 1) (+ .cse0 main_~index2~0))))) [2021-02-21 21:19:49,054 INFO L185 CegarLoopUtils]: At program point L50(line 50) the Hoare annotation is: (let ((.cse4 (div main_~index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse4))) (and (<= main_~index2~0 (+ .cse0 99998)) (let ((.cse5 (div main_~index1~0 4294967296))) (or (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse2 (select .cse3 (+ (* .cse5 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse1 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse1 (* 4294967296 (div (+ .cse2 (* .cse1 (- 1)) 4294967295) 4294967296)))) .cse2))) (<= (+ .cse0 main_~index1~0) (+ (* 4294967296 .cse5) main_~index2~0)))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294))))) [2021-02-21 21:19:49,055 INFO L185 CegarLoopUtils]: At program point L46(line 46) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (and (<= main_~index2~0 (+ .cse0 99999)) (or (<= main_~index2~0 (+ .cse0 99998)) (= main_~loop_entered~0 0)) (<= (+ .cse0 main_~index1~0 1) (+ (* 4294967296 (div main_~index1~0 4294967296)) main_~index2~0)))) [2021-02-21 21:19:49,055 INFO L185 CegarLoopUtils]: At program point L46-1(line 46) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (and (<= main_~index2~0 (+ .cse0 99999)) (<= (+ .cse0 main_~index1~0 1) (+ (* 4294967296 (div main_~index1~0 4294967296)) main_~index2~0)))) [2021-02-21 21:19:49,055 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 33 61) the Hoare annotation is: true [2021-02-21 21:19:49,055 INFO L185 CegarLoopUtils]: At program point L42(line 42) the Hoare annotation is: (= main_~loop_entered~0 0) [2021-02-21 21:19:49,055 INFO L192 CegarLoopUtils]: At program point L38(line 38) the Hoare annotation is: true [2021-02-21 21:19:49,055 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 33 61) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-21 21:19:49,056 INFO L185 CegarLoopUtils]: At program point L55(line 55) the Hoare annotation is: (let ((.cse3 (div main_~index2~0 4294967296))) (and (let ((.cse2 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse1 (select .cse2 (+ (* (div main_~index1~0 4294967296) (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse0 (select .cse2 (+ (* .cse3 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse0 (* 4294967296 (div (+ .cse1 (* .cse0 (- 1)) 4294967295) 4294967296)))) .cse1))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) (<= main_~index2~0 (+ (* 4294967296 .cse3) 99999)))) [2021-02-21 21:19:49,056 INFO L185 CegarLoopUtils]: At program point L55-1(line 55) the Hoare annotation is: (let ((.cse3 (select |#memory_int| |main_~#array~0.base|)) (.cse4 (div main_~index2~0 4294967296))) (let ((.cse0 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (let ((.cse2 (* .cse0 (- 1)))) (and (let ((.cse1 (select .cse3 (+ (* (div main_~index1~0 4294967296) (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (+ .cse0 (* 4294967296 (div (+ .cse1 .cse2 4294967295) 4294967296))) .cse1)) (<= |main_#t~mem9| (+ .cse0 (* 4294967296 (div (+ .cse2 |main_#t~mem9|) 4294967296)))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) (<= main_~index2~0 (+ (* 4294967296 .cse4) 99999)))))) [2021-02-21 21:19:49,057 INFO L185 CegarLoopUtils]: At program point L55-2(line 55) the Hoare annotation is: (let ((.cse3 (select |#memory_int| |main_~#array~0.base|)) (.cse6 (div main_~index2~0 4294967296))) (let ((.cse0 (select .cse3 (+ (* .cse6 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (let ((.cse2 (* .cse0 (- 1))) (.cse5 (* 4294967296 (div |main_#t~mem10| 4294967296))) (.cse4 (+ (* 4294967296 (div |main_#t~mem9| 4294967296)) |main_#t~mem10|))) (and (let ((.cse1 (select .cse3 (+ (* (div main_~index1~0 4294967296) (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (+ .cse0 (* 4294967296 (div (+ .cse1 .cse2 4294967295) 4294967296))) .cse1)) (<= |main_#t~mem9| (+ .cse0 (* 4294967296 (div (+ .cse2 |main_#t~mem9|) 4294967296)))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) (< .cse4 (+ |main_#t~mem9| .cse5 1)) (<= main_~index2~0 (+ (* 4294967296 .cse6) 99999)) (<= (+ |main_#t~mem9| .cse5) .cse4))))) [2021-02-21 21:19:49,057 INFO L185 CegarLoopUtils]: At program point L55-3(line 55) the Hoare annotation is: (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) [2021-02-21 21:19:49,057 INFO L185 CegarLoopUtils]: At program point L55-4(line 55) the Hoare annotation is: (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) [2021-02-21 21:19:49,057 INFO L185 CegarLoopUtils]: At program point L47(line 47) the Hoare annotation is: (let ((.cse1 (* 4294967296 (div main_~index2~0 4294967296))) (.cse0 (div main_~index1~0 4294967296))) (and (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* .cse0 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)) |main_#t~mem5|) (<= main_~index2~0 (+ .cse1 99999)) (<= (+ .cse1 main_~index1~0 1) (+ (* 4294967296 .cse0) main_~index2~0)))) [2021-02-21 21:19:49,058 INFO L185 CegarLoopUtils]: At program point L47-1(line 47) the Hoare annotation is: (let ((.cse2 (div main_~index2~0 4294967296))) (let ((.cse0 (select |#memory_int| |main_~#array~0.base|)) (.cse3 (* 4294967296 .cse2)) (.cse1 (div main_~index1~0 4294967296))) (and (= (select .cse0 (+ (* .cse1 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)) |main_#t~mem5|) (= (select .cse0 (+ (* .cse2 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)) |main_#t~mem6|) (<= main_~index2~0 (+ .cse3 99999)) (<= (+ .cse3 main_~index1~0 1) (+ (* 4294967296 .cse1) main_~index2~0))))) [2021-02-21 21:19:49,058 INFO L185 CegarLoopUtils]: At program point L47-2(line 47) the Hoare annotation is: (let ((.cse4 (div main_~index2~0 4294967296)) (.cse5 (select |#memory_int| |main_~#array~0.base|)) (.cse3 (div main_~index1~0 4294967296))) (let ((.cse0 (select .cse5 (+ (* .cse3 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|))) (.cse1 (select .cse5 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|))) (.cse2 (* 4294967296 .cse4))) (and (= .cse0 |main_#t~mem5|) (= .cse1 |main_#t~mem6|) (<= main_~index2~0 (+ .cse2 99999)) (<= .cse1 (+ .cse0 (* 4294967296 (div (+ (* .cse0 (- 1)) .cse1) 4294967296)))) (<= (+ .cse2 main_~index1~0 1) (+ (* 4294967296 .cse3) main_~index2~0))))) [2021-02-21 21:19:49,058 INFO L185 CegarLoopUtils]: At program point L47-3(line 47) the Hoare annotation is: (let ((.cse5 (div main_~index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse5)) (.cse4 (div main_~index1~0 4294967296))) (and (<= main_~index2~0 (+ .cse0 99999)) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse1 (select .cse3 (+ (* .cse5 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (<= .cse1 (let ((.cse2 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (+ .cse2 (* 4294967296 (div (+ (* .cse2 (- 1)) .cse1) 4294967296))))))) (<= (+ .cse0 main_~index1~0 1) (+ (* 4294967296 .cse4) main_~index2~0))))) [2021-02-21 21:19:49,058 INFO L185 CegarLoopUtils]: At program point L43(line 43) the Hoare annotation is: (= main_~loop_entered~0 0) [2021-02-21 21:19:49,059 INFO L192 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: true [2021-02-21 21:19:49,059 INFO L192 CegarLoopUtils]: At program point L35-1(line 35) the Hoare annotation is: true [2021-02-21 21:19:49,059 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 23 29) the Hoare annotation is: true [2021-02-21 21:19:49,059 INFO L185 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-21 21:19:49,059 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 23 29) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-21 21:19:49,059 INFO L185 CegarLoopUtils]: At program point L25(lines 25 27) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-21 21:19:49,059 INFO L185 CegarLoopUtils]: At program point L26-1(line 26) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-21 21:19:49,059 INFO L185 CegarLoopUtils]: At program point L25-2(lines 23 29) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-21 21:19:49,060 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-21 21:19:49,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 09:19:49 BoogieIcfgContainer [2021-02-21 21:19:49,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 21:19:49,125 INFO L168 Benchmark]: Toolchain (without parser) took 25194.41 ms. Allocated memory was 154.1 MB in the beginning and 268.4 MB in the end (delta: 114.3 MB). Free memory was 131.1 MB in the beginning and 139.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 150.0 MB. Max. memory is 8.0 GB. [2021-02-21 21:19:49,125 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 154.1 MB. Free memory is still 128.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 21:19:49,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.14 ms. Allocated memory is still 154.1 MB. Free memory was 130.1 MB in the beginning and 120.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-21 21:19:49,128 INFO L168 Benchmark]: Boogie Preprocessor took 41.84 ms. Allocated memory is still 154.1 MB. Free memory was 120.1 MB in the beginning and 118.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 21:19:49,129 INFO L168 Benchmark]: RCFGBuilder took 612.60 ms. Allocated memory is still 154.1 MB. Free memory was 118.5 MB in the beginning and 99.7 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-02-21 21:19:49,129 INFO L168 Benchmark]: TraceAbstraction took 24147.07 ms. Allocated memory was 154.1 MB in the beginning and 268.4 MB in the end (delta: 114.3 MB). Free memory was 99.4 MB in the beginning and 139.7 MB in the end (delta: -40.3 MB). Peak memory consumption was 118.5 MB. Max. memory is 8.0 GB. [2021-02-21 21:19:49,136 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 154.1 MB. Free memory is still 128.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 367.14 ms. Allocated memory is still 154.1 MB. Free memory was 130.1 MB in the beginning and 120.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.84 ms. Allocated memory is still 154.1 MB. Free memory was 120.1 MB in the beginning and 118.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 612.60 ms. Allocated memory is still 154.1 MB. Free memory was 118.5 MB in the beginning and 99.7 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24147.07 ms. Allocated memory was 154.1 MB in the beginning and 268.4 MB in the end (delta: 114.3 MB). Free memory was 99.4 MB in the beginning and 139.7 MB in the end (delta: -40.3 MB). Peak memory consumption was 118.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: ((index2 <= 4294967296 * (index2 / 4294967296) + 99998 && (unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] + 4294967296 * ((unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] + unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] * -1 + 4294967295) / 4294967296) <= unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] || 4294967296 * (index2 / 4294967296) + index1 <= 4294967296 * (index1 / 4294967296) + index2)) && index2 <= 4294967296 * (((index1 + -1) / 4294967296 * 4294967296 + index2 + index1 * -1 + 1) / 4294967296) + 4294967294) || (index2 <= 4294967296 * (index2 / 4294967296) + 99999 && loop_entered == 0) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((index1 <= 4294967296 * (index1 / 4294967296) + 100000 && unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] + 4294967296 * ((unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] + unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] * -1 + 4294967295) / 4294967296) <= unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array]) && index2 <= 4294967296 * (((index1 + -1) / 4294967296 * 4294967296 + index2 + index1 * -1 + 1) / 4294967296) + 4294967294) || 4294967296 * (index2 / 4294967296) + index1 + 1 <= 4294967296 * (index1 / 4294967296) + index2 - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not: cond == \old(cond) && !(\old(cond) == 0) - ProcedureContractResult [Line: 33]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 23]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.4s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 310 SDtfs, 275 SDslu, 1522 SDs, 0 SdLazy, 1715 SolverSat, 115 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 201 GetRequests, 66 SyntacticMatches, 11 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 834 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 66 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 66 LocationsWithAnnotation, 140 PreInvPairs, 218 NumberOfFragments, 2659 HoareAnnotationTreeSize, 140 FomulaSimplifications, 2554 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 66 FomulaSimplificationsInter, 3323 FormulaSimplificationTreeSizeReductionInter, 8.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...