/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/mannadiv_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 01:55:24,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 01:55:24,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 01:55:24,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-01 01:55:24,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 01:55:24,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 01:55:24,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 01:55:24,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 01:55:24,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 01:55:24,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 01:55:24,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 01:55:24,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 01:55:24,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 01:55:24,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 01:55:24,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 01:55:24,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 01:55:24,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 01:55:24,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 01:55:24,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 01:55:24,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 01:55:24,930 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-05-01 01:55:24,956 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 01:55:24,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 01:55:24,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-01 01:55:24,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-01 01:55:24,958 INFO L138 SettingsManager]: * Use SBE=true [2021-05-01 01:55:24,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 01:55:24,959 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 01:55:24,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 01:55:24,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 01:55:24,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 01:55:24,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 01:55:24,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 01:55:24,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 01:55:24,960 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 01:55:24,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 01:55:24,960 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 01:55:24,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 01:55:24,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 01:55:24,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 01:55:24,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 01:55:24,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 01:55:24,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 01:55:24,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-01 01:55:24,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-01 01:55:24,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 01:55:24,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-01 01:55:24,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-01 01:55:24,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-05-01 01:55:24,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 01:55:25,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 01:55:25,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 01:55:25,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 01:55:25,235 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 01:55:25,235 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 01:55:25,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/mannadiv_valuebound1.c [2021-05-01 01:55:25,291 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fddaa06a9/585c254e2a5f40c6a9226f208580557f/FLAG56575063b [2021-05-01 01:55:25,640 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 01:55:25,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/mannadiv_valuebound1.c [2021-05-01 01:55:25,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fddaa06a9/585c254e2a5f40c6a9226f208580557f/FLAG56575063b [2021-05-01 01:55:26,071 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fddaa06a9/585c254e2a5f40c6a9226f208580557f [2021-05-01 01:55:26,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 01:55:26,074 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-01 01:55:26,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 01:55:26,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 01:55:26,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 01:55:26,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 01:55:26" (1/1) ... [2021-05-01 01:55:26,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 01:55:26, skipping insertion in model container [2021-05-01 01:55:26,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 01:55:26" (1/1) ... [2021-05-01 01:55:26,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 01:55:26,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 01:55:26,176 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/mannadiv_valuebound1.c[573,586] [2021-05-01 01:55:26,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 01:55:26,193 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 01:55:26,200 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/mannadiv_valuebound1.c[573,586] [2021-05-01 01:55:26,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 01:55:26,212 INFO L208 MainTranslator]: Completed translation [2021-05-01 01:55:26,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 01:55:26 WrapperNode [2021-05-01 01:55:26,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 01:55:26,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 01:55:26,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 01:55:26,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 01:55:26,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 01:55:26" (1/1) ... [2021-05-01 01:55:26,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 01:55:26" (1/1) ... [2021-05-01 01:55:26,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 01:55:26" (1/1) ... [2021-05-01 01:55:26,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 01:55:26" (1/1) ... [2021-05-01 01:55:26,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 01:55:26" (1/1) ... [2021-05-01 01:55:26,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 01:55:26" (1/1) ... [2021-05-01 01:55:26,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 01:55:26" (1/1) ... [2021-05-01 01:55:26,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 01:55:26,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 01:55:26,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 01:55:26,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 01:55:26,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 01:55:26" (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 [2021-05-01 01:55:26,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 01:55:26,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 01:55:26,348 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 01:55:26,349 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 01:55:26,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 01:55:26,349 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 01:55:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 01:55:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 01:55:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 01:55:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 01:55:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 01:55:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 01:55:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 01:55:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 01:55:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 01:55:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 01:55:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 01:55:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 01:55:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 01:55:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 01:55:26,551 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 01:55:26,551 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 01:55:26,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 01:55:26 BoogieIcfgContainer [2021-05-01 01:55:26,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 01:55:26,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 01:55:26,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 01:55:26,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 01:55:26,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 01:55:26" (1/3) ... [2021-05-01 01:55:26,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165e6705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 01:55:26, skipping insertion in model container [2021-05-01 01:55:26,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 01:55:26" (2/3) ... [2021-05-01 01:55:26,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165e6705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 01:55:26, skipping insertion in model container [2021-05-01 01:55:26,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 01:55:26" (3/3) ... [2021-05-01 01:55:26,557 INFO L111 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound1.c [2021-05-01 01:55:26,577 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-01 01:55:26,579 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 01:55:26,589 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 01:55:26,636 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 01:55:26,636 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-01 01:55:26,636 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-01 01:55:26,636 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 01:55:26,636 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 01:55:26,636 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 01:55:26,636 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 01:55:26,636 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 01:55:26,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-01 01:55:26,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-01 01:55:26,651 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 01:55:26,652 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 01:55:26,652 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 01:55:26,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 01:55:26,659 INFO L82 PathProgramCache]: Analyzing trace with hash -786972844, now seen corresponding path program 1 times [2021-05-01 01:55:26,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 01:55:26,665 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498577660] [2021-05-01 01:55:26,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 01:55:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 01:55:26,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:26,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:26,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:26,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:26,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 01:55:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 01:55:26,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:26,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:26,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-01 01:55:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 01:55:26,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:26,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:26,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:26,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:26,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-01 01:55:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 01:55:26,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:26,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:26,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:26,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:26,874 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-01 01:55:26,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 01:55:26,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498577660] [2021-05-01 01:55:26,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498577660] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 01:55:26,875 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 01:55:26,875 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 01:55:26,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088020423] [2021-05-01 01:55:26,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 01:55:26,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 01:55:26,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 01:55:26,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 01:55:26,889 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-01 01:55:26,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 01:55:26,969 INFO L93 Difference]: Finished difference Result 51 states and 68 transitions. [2021-05-01 01:55:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 01:55:26,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-05-01 01:55:26,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 01:55:26,976 INFO L225 Difference]: With dead ends: 51 [2021-05-01 01:55:26,976 INFO L226 Difference]: Without dead ends: 24 [2021-05-01 01:55:26,978 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 01:55:26,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-05-01 01:55:27,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-05-01 01:55:27,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-01 01:55:27,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-05-01 01:55:27,003 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 22 [2021-05-01 01:55:27,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 01:55:27,003 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-05-01 01:55:27,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-01 01:55:27,004 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-05-01 01:55:27,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-01 01:55:27,005 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 01:55:27,005 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 01:55:27,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 01:55:27,006 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 01:55:27,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 01:55:27,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1131020600, now seen corresponding path program 1 times [2021-05-01 01:55:27,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 01:55:27,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745840287] [2021-05-01 01:55:27,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 01:55:27,031 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-01 01:55:27,031 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444302135] [2021-05-01 01:55:27,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-01 01:55:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 01:55:27,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-01 01:55:27,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-01 01:55:27,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 01:55:27,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 01:55:27,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 01:55:27,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 01:55:27,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 01:55:27,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 01:55:27,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 01:55:27,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 01:55:27,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 01:55:27,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 01:55:27,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 01:55:27,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 01:55:27,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 01:55:27,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 01:55:27,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 01:55:27,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 01:55:27,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 01:55:27,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 01:55:27,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,289 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-05-01 01:55:27,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,295 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-01 01:55:27,295 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 01:55:27,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745840287] [2021-05-01 01:55:27,296 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-01 01:55:27,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444302135] [2021-05-01 01:55:27,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444302135] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-01 01:55:27,296 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-01 01:55:27,296 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-05-01 01:55:27,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853891465] [2021-05-01 01:55:27,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-01 01:55:27,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 01:55:27,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-01 01:55:27,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-01 01:55:27,298 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-01 01:55:27,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 01:55:27,375 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2021-05-01 01:55:27,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 01:55:27,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-05-01 01:55:27,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 01:55:27,378 INFO L225 Difference]: With dead ends: 35 [2021-05-01 01:55:27,378 INFO L226 Difference]: Without dead ends: 33 [2021-05-01 01:55:27,379 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 45.3ms TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-05-01 01:55:27,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-05-01 01:55:27,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2021-05-01 01:55:27,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-01 01:55:27,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-05-01 01:55:27,386 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 22 [2021-05-01 01:55:27,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 01:55:27,387 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-05-01 01:55:27,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-01 01:55:27,387 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-05-01 01:55:27,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-01 01:55:27,388 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 01:55:27,388 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 01:55:27,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-01 01:55:27,603 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 01:55:27,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 01:55:27,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1991967029, now seen corresponding path program 1 times [2021-05-01 01:55:27,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 01:55:27,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549362051] [2021-05-01 01:55:27,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 01:55:27,617 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-01 01:55:27,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832919127] [2021-05-01 01:55:27,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-01 01:55:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 01:55:27,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-01 01:55:27,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-01 01:55:27,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 01:55:27,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 01:55:27,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 01:55:27,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 01:55:27,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 01:55:27,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 01:55:27,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 01:55:27,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 01:55:27,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 01:55:27,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 01:55:27,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 01:55:27,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 01:55:27,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 01:55:27,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 01:55:27,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 01:55:27,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 01:55:27,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 01:55:27,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 01:55:27,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 01:55:27,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 01:55:27,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 01:55:27,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 01:55:27,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 01:55:27,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-01 01:55:27,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-01 01:55:27,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 01:55:27,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 01:55:27,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 01:55:27,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 01:55:27,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 01:55:27,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-05-01 01:55:27,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 01:55:27,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 01:55:27,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-05-01 01:55:27,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 01:55:27,792 INFO L142 QuantifierPusher]: treesize reduction 29, result has 21.6 percent of original size [2021-05-01 01:55:27,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 01:55:27,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 01:55:27,823 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-05-01 01:55:27,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 01:55:27,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 01:55:27,825 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-01 01:55:27,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 01:55:27,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549362051] [2021-05-01 01:55:27,825 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-01 01:55:27,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832919127] [2021-05-01 01:55:27,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832919127] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-01 01:55:27,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-01 01:55:27,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-05-01 01:55:27,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506260240] [2021-05-01 01:55:27,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-01 01:55:27,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 01:55:27,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-01 01:55:27,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-05-01 01:55:27,828 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 9 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-01 01:55:27,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 01:55:27,953 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2021-05-01 01:55:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-01 01:55:27,954 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 9 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2021-05-01 01:55:27,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 01:55:27,954 INFO L225 Difference]: With dead ends: 30 [2021-05-01 01:55:27,954 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 01:55:27,955 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 108.4ms TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-05-01 01:55:27,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 01:55:27,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 01:55:27,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-01 01:55:27,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 01:55:27,956 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-05-01 01:55:27,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 01:55:27,956 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 01:55:27,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 9 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-01 01:55:27,956 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 01:55:27,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 01:55:28,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-01 01:55:28,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-01 01:55:28,329 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 9) no Hoare annotation was computed. [2021-05-01 01:55:28,329 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 9) no Hoare annotation was computed. [2021-05-01 01:55:28,329 INFO L198 CegarLoopUtils]: For program point reach_errorFINAL(line 9) no Hoare annotation was computed. [2021-05-01 01:55:28,329 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-05-01 01:55:28,329 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-05-01 01:55:28,329 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-05-01 01:55:28,329 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-05-01 01:55:28,329 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-01 01:55:28,329 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-01 01:55:28,329 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-05-01 01:55:28,329 INFO L201 CegarLoopUtils]: At program point assume_abort_if_notENTRY(lines 12 14) the Hoare annotation is: true [2021-05-01 01:55:28,329 INFO L198 CegarLoopUtils]: For program point L13(line 13) no Hoare annotation was computed. [2021-05-01 01:55:28,330 INFO L198 CegarLoopUtils]: For program point L13-2(lines 12 14) no Hoare annotation was computed. [2021-05-01 01:55:28,330 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 12 14) no Hoare annotation was computed. [2021-05-01 01:55:28,330 INFO L194 CegarLoopUtils]: At program point L35-2(lines 35 48) the Hoare annotation is: (let ((.cse0 (* main_~y1~0 main_~x2~0))) (and (= main_~x1~0 (+ main_~y2~0 .cse0)) (= (+ main_~y2~0 main_~y3~0 .cse0) main_~x1~0) (<= 0 main_~x1~0))) [2021-05-01 01:55:28,330 INFO L198 CegarLoopUtils]: For program point L29(line 29) no Hoare annotation was computed. [2021-05-01 01:55:28,330 INFO L198 CegarLoopUtils]: For program point mainEXIT(lines 22 51) no Hoare annotation was computed. [2021-05-01 01:55:28,330 INFO L198 CegarLoopUtils]: For program point mainFINAL(lines 22 51) no Hoare annotation was computed. [2021-05-01 01:55:28,330 INFO L198 CegarLoopUtils]: For program point L40(lines 40 47) no Hoare annotation was computed. [2021-05-01 01:55:28,330 INFO L194 CegarLoopUtils]: At program point L40-2(lines 35 48) the Hoare annotation is: (and (<= main_~y3~0 main_~x1~0) (= (+ main_~y2~0 main_~y3~0 (* main_~y1~0 main_~x2~0)) main_~x1~0) (<= 0 main_~x1~0)) [2021-05-01 01:55:28,330 INFO L194 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: (and (<= main_~y3~0 main_~x1~0) (= (+ main_~y2~0 main_~y3~0 (* main_~y1~0 main_~x2~0)) main_~x1~0) (<= 0 main_~x1~0)) [2021-05-01 01:55:28,330 INFO L198 CegarLoopUtils]: For program point L36-1(lines 35 48) no Hoare annotation was computed. [2021-05-01 01:55:28,330 INFO L201 CegarLoopUtils]: At program point mainENTRY(lines 22 51) the Hoare annotation is: true [2021-05-01 01:55:28,330 INFO L201 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-05-01 01:55:28,330 INFO L194 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: (<= 0 main_~x1~0) [2021-05-01 01:55:28,330 INFO L198 CegarLoopUtils]: For program point L49(line 49) no Hoare annotation was computed. [2021-05-01 01:55:28,330 INFO L198 CegarLoopUtils]: For program point L17(lines 17 18) no Hoare annotation was computed. [2021-05-01 01:55:28,330 INFO L198 CegarLoopUtils]: For program point L16(lines 16 19) no Hoare annotation was computed. [2021-05-01 01:55:28,331 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 15 21) the Hoare annotation is: true [2021-05-01 01:55:28,331 INFO L198 CegarLoopUtils]: For program point L16-2(lines 15 21) no Hoare annotation was computed. [2021-05-01 01:55:28,331 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 15 21) no Hoare annotation was computed. [2021-05-01 01:55:28,331 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-05-01 01:55:28,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 01:55:28 BoogieIcfgContainer [2021-05-01 01:55:28,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 01:55:28,340 INFO L168 Benchmark]: Toolchain (without parser) took 2265.88 ms. Allocated memory was 209.7 MB in the beginning and 251.7 MB in the end (delta: 41.9 MB). Free memory was 174.0 MB in the beginning and 179.1 MB in the end (delta: -5.1 MB). Peak memory consumption was 37.2 MB. Max. memory is 8.0 GB. [2021-05-01 01:55:28,340 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 209.7 MB. Free memory was 190.6 MB in the beginning and 190.5 MB in the end (delta: 105.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 01:55:28,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.31 ms. Allocated memory is still 209.7 MB. Free memory was 173.9 MB in the beginning and 164.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-01 01:55:28,341 INFO L168 Benchmark]: Boogie Preprocessor took 62.85 ms. Allocated memory is still 209.7 MB. Free memory was 164.2 MB in the beginning and 192.4 MB in the end (delta: -28.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 8.0 GB. [2021-05-01 01:55:28,341 INFO L168 Benchmark]: RCFGBuilder took 274.70 ms. Allocated memory is still 209.7 MB. Free memory was 192.4 MB in the beginning and 177.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-05-01 01:55:28,341 INFO L168 Benchmark]: TraceAbstraction took 1786.96 ms. Allocated memory was 209.7 MB in the beginning and 251.7 MB in the end (delta: 41.9 MB). Free memory was 177.3 MB in the beginning and 179.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 40.0 MB. Max. memory is 8.0 GB. [2021-05-01 01:55:28,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 209.7 MB. Free memory was 190.6 MB in the beginning and 190.5 MB in the end (delta: 105.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 137.31 ms. Allocated memory is still 209.7 MB. Free memory was 173.9 MB in the beginning and 164.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.85 ms. Allocated memory is still 209.7 MB. Free memory was 164.2 MB in the beginning and 192.4 MB in the end (delta: -28.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 274.70 ms. Allocated memory is still 209.7 MB. Free memory was 192.4 MB in the beginning and 177.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1786.96 ms. Allocated memory was 209.7 MB in the beginning and 251.7 MB in the end (delta: 41.9 MB). Free memory was 177.3 MB in the beginning and 179.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 40.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1535.2ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 9.8ms, AutomataDifference: 307.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 159.0ms, InitialAbstractionConstructionTime: 7.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 58 SDtfs, 53 SDslu, 167 SDs, 0 SdLazy, 169 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 119.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 193.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=2, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 23.4ms AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 11 LocationsWithAnnotation, 17 PreInvPairs, 23 NumberOfFragments, 89 HoareAnnotationTreeSize, 17 FomulaSimplifications, 158 FormulaSimplificationTreeSizeReduction, 41.8ms HoareSimplificationTime, 11 FomulaSimplificationsInter, 249 FormulaSimplificationTreeSizeReductionInter, 110.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 31.2ms SsaConstructionTime, 66.7ms SatisfiabilityAnalysisTime, 499.8ms InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 199 SizeOfPredicates, 6 NumberOfNonLiveVariables, 241 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 7/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (y3 <= x1 && y2 + y3 + y1 * x2 == x1) && 0 <= x1 RESULT: Ultimate proved your program to be correct! Received shutdown request...