/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/cohendiv-ll_valuebound100.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 19:46:33,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 19:46:33,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 19:46:33,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-02 19:46:33,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 19:46:33,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 19:46:33,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 19:46:33,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 19:46:33,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 19:46:33,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 19:46:33,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 19:46:33,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 19:46:33,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 19:46:33,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 19:46:33,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 19:46:33,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 19:46:33,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 19:46:33,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 19:46:33,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 19:46:33,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 19:46:33,086 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 19:46:33,102 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 19:46:33,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 19:46:33,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 19:46:33,103 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 19:46:33,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 19:46:33,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 19:46:33,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 19:46:33,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 19:46:33,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 19:46:33,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 19:46:33,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 19:46:33,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 19:46:33,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 19:46:33,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 19:46:33,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 19:46:33,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 19:46:33,105 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 19:46:33,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 19:46:33,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 19:46:33,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 19:46:33,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 19:46:33,109 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 19:46:33,109 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 19:46:33,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 19:46:33,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 19:46:33,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 19:46:33,403 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 19:46:33,404 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 19:46:33,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/cohendiv-ll_valuebound100.c [2021-05-02 19:46:33,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2e29bdac/ae5804dc8208413a855436a78de6a163/FLAG6f0c10ec7 [2021-05-02 19:46:33,846 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 19:46:33,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/cohendiv-ll_valuebound100.c [2021-05-02 19:46:33,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2e29bdac/ae5804dc8208413a855436a78de6a163/FLAG6f0c10ec7 [2021-05-02 19:46:33,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2e29bdac/ae5804dc8208413a855436a78de6a163 [2021-05-02 19:46:33,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 19:46:33,874 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 19:46:33,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 19:46:33,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 19:46:33,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 19:46:33,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 07:46:33" (1/1) ... [2021-05-02 19:46:33,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395cd531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:46:33, skipping insertion in model container [2021-05-02 19:46:33,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 07:46:33" (1/1) ... [2021-05-02 19:46:33,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 19:46:33,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 19:46:34,012 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/cohendiv-ll_valuebound100.c[576,589] [2021-05-02 19:46:34,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 19:46:34,030 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 19:46:34,040 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/cohendiv-ll_valuebound100.c[576,589] [2021-05-02 19:46:34,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 19:46:34,058 INFO L208 MainTranslator]: Completed translation [2021-05-02 19:46:34,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:46:34 WrapperNode [2021-05-02 19:46:34,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 19:46:34,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 19:46:34,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 19:46:34,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 19:46:34,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:46:34" (1/1) ... [2021-05-02 19:46:34,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:46:34" (1/1) ... [2021-05-02 19:46:34,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:46:34" (1/1) ... [2021-05-02 19:46:34,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:46:34" (1/1) ... [2021-05-02 19:46:34,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:46:34" (1/1) ... [2021-05-02 19:46:34,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:46:34" (1/1) ... [2021-05-02 19:46:34,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:46:34" (1/1) ... [2021-05-02 19:46:34,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 19:46:34,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 19:46:34,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 19:46:34,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 19:46:34,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:46:34" (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 [2021-05-02 19:46:34,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 19:46:34,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 19:46:34,225 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 19:46:34,225 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-02 19:46:34,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 19:46:34,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 19:46:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 19:46:34,226 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 19:46:34,226 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 19:46:34,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 19:46:34,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-02 19:46:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-02 19:46:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 19:46:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 19:46:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 19:46:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 19:46:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 19:46:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 19:46:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 19:46:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 19:46:34,502 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 19:46:34,502 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-05-02 19:46:34,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 07:46:34 BoogieIcfgContainer [2021-05-02 19:46:34,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 19:46:34,504 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 19:46:34,504 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 19:46:34,505 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 19:46:34,507 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 07:46:34" (1/1) ... [2021-05-02 19:46:34,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 07:46:34 BasicIcfg [2021-05-02 19:46:34,523 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 19:46:34,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 19:46:34,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 19:46:34,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 19:46:34,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 07:46:33" (1/4) ... [2021-05-02 19:46:34,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db4a364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 07:46:34, skipping insertion in model container [2021-05-02 19:46:34,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:46:34" (2/4) ... [2021-05-02 19:46:34,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db4a364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 07:46:34, skipping insertion in model container [2021-05-02 19:46:34,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 07:46:34" (3/4) ... [2021-05-02 19:46:34,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db4a364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 07:46:34, skipping insertion in model container [2021-05-02 19:46:34,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 07:46:34" (4/4) ... [2021-05-02 19:46:34,529 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound100.cJordan [2021-05-02 19:46:34,534 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 19:46:34,537 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 19:46:34,551 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 19:46:34,567 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 19:46:34,567 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 19:46:34,567 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 19:46:34,567 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 19:46:34,567 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 19:46:34,567 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 19:46:34,567 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 19:46:34,567 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 19:46:34,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-02 19:46:34,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-02 19:46:34,586 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:46:34,587 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:46:34,587 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:46:34,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:46:34,591 INFO L82 PathProgramCache]: Analyzing trace with hash 795680375, now seen corresponding path program 1 times [2021-05-02 19:46:34,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:46:34,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96246723] [2021-05-02 19:46:34,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:46:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:46:34,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 19:46:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:46:34,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-02 19:46:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:46:34,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-05-02 19:46:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:46:34,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-05-02 19:46:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:46:34,858 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-02 19:46:34,859 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:46:34,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96246723] [2021-05-02 19:46:34,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96246723] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 19:46:34,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 19:46:34,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 19:46:34,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661310158] [2021-05-02 19:46:34,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 19:46:34,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:46:34,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 19:46:34,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 19:46:34,876 INFO L87 Difference]: Start difference. First operand has 39 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-05-02 19:46:34,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:46:34,992 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-05-02 19:46:34,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 19:46:34,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2021-05-02 19:46:34,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:46:35,001 INFO L225 Difference]: With dead ends: 39 [2021-05-02 19:46:35,002 INFO L226 Difference]: Without dead ends: 34 [2021-05-02 19:46:35,004 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 19:46:35,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-05-02 19:46:35,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-05-02 19:46:35,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-05-02 19:46:35,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2021-05-02 19:46:35,042 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 28 [2021-05-02 19:46:35,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:46:35,045 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2021-05-02 19:46:35,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-05-02 19:46:35,045 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2021-05-02 19:46:35,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-02 19:46:35,047 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:46:35,047 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:46:35,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 19:46:35,047 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:46:35,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:46:35,051 INFO L82 PathProgramCache]: Analyzing trace with hash 797557208, now seen corresponding path program 1 times [2021-05-02 19:46:35,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:46:35,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068524680] [2021-05-02 19:46:35,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:46:35,083 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:46:35,084 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137473421] [2021-05-02 19:46:35,084 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 [2021-05-02 19:46:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:46:35,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 25 conjunts are in the unsatisfiable core [2021-05-02 19:46:35,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:46:35,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:35,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:35,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:35,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:35,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:35,427 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-02 19:46:35,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:46:35,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068524680] [2021-05-02 19:46:35,428 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:46:35,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137473421] [2021-05-02 19:46:35,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137473421] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 19:46:35,428 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 19:46:35,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-02 19:46:35,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152765042] [2021-05-02 19:46:35,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-02 19:46:35,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:46:35,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-02 19:46:35,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-05-02 19:46:35,431 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-05-02 19:46:35,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:46:35,548 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2021-05-02 19:46:35,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-02 19:46:35,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2021-05-02 19:46:35,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:46:35,554 INFO L225 Difference]: With dead ends: 43 [2021-05-02 19:46:35,554 INFO L226 Difference]: Without dead ends: 43 [2021-05-02 19:46:35,556 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 59.7ms TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-05-02 19:46:35,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-05-02 19:46:35,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2021-05-02 19:46:35,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 24 states have internal predecessors, (25), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-02 19:46:35,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2021-05-02 19:46:35,574 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 28 [2021-05-02 19:46:35,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:46:35,579 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2021-05-02 19:46:35,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-05-02 19:46:35,580 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2021-05-02 19:46:35,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-02 19:46:35,580 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:46:35,581 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:46:35,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-02 19:46:35,781 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:46:35,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:46:35,782 INFO L82 PathProgramCache]: Analyzing trace with hash 648866686, now seen corresponding path program 1 times [2021-05-02 19:46:35,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:46:35,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417485548] [2021-05-02 19:46:35,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:46:35,803 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:46:35,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886185351] [2021-05-02 19:46:35,803 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 [2021-05-02 19:46:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:46:35,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 25 conjunts are in the unsatisfiable core [2021-05-02 19:46:35,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:46:35,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:35,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:35,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:35,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:35,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:35,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:36,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:36,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:36,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:36,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:36,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:36,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:36,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:36,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:36,090 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-02 19:46:36,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:46:36,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417485548] [2021-05-02 19:46:36,090 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:46:36,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886185351] [2021-05-02 19:46:36,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886185351] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 19:46:36,091 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 19:46:36,091 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-02 19:46:36,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968856830] [2021-05-02 19:46:36,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-02 19:46:36,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:46:36,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-02 19:46:36,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-05-02 19:46:36,093 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2021-05-02 19:46:36,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:46:36,226 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2021-05-02 19:46:36,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-02 19:46:36,227 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 33 [2021-05-02 19:46:36,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:46:36,228 INFO L225 Difference]: With dead ends: 55 [2021-05-02 19:46:36,228 INFO L226 Difference]: Without dead ends: 54 [2021-05-02 19:46:36,228 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 79.2ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-05-02 19:46:36,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-05-02 19:46:36,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2021-05-02 19:46:36,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-02 19:46:36,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2021-05-02 19:46:36,235 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 33 [2021-05-02 19:46:36,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:46:36,236 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2021-05-02 19:46:36,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2021-05-02 19:46:36,236 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2021-05-02 19:46:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-02 19:46:36,237 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:46:36,237 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:46:36,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:46:36,449 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:46:36,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:46:36,449 INFO L82 PathProgramCache]: Analyzing trace with hash 619469170, now seen corresponding path program 1 times [2021-05-02 19:46:36,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:46:36,450 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952603984] [2021-05-02 19:46:36,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:46:36,463 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:46:36,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415150214] [2021-05-02 19:46:36,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:46:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:46:36,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-02 19:46:36,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:46:36,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-05-02 19:46:36,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:46:36,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952603984] [2021-05-02 19:46:36,631 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:46:36,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415150214] [2021-05-02 19:46:36,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415150214] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:46:36,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 19:46:36,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-05-02 19:46:36,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691378557] [2021-05-02 19:46:36,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-02 19:46:36,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:46:36,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-02 19:46:36,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-02 19:46:36,633 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-05-02 19:46:36,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:46:36,770 INFO L93 Difference]: Finished difference Result 77 states and 103 transitions. [2021-05-02 19:46:36,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-02 19:46:36,770 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 40 [2021-05-02 19:46:36,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:46:36,773 INFO L225 Difference]: With dead ends: 77 [2021-05-02 19:46:36,773 INFO L226 Difference]: Without dead ends: 77 [2021-05-02 19:46:36,776 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 36.4ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-05-02 19:46:36,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-05-02 19:46:36,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 70. [2021-05-02 19:46:36,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 40 states have internal predecessors, (44), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-02 19:46:36,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 92 transitions. [2021-05-02 19:46:36,797 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 92 transitions. Word has length 40 [2021-05-02 19:46:36,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:46:36,797 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 92 transitions. [2021-05-02 19:46:36,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-05-02 19:46:36,798 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 92 transitions. [2021-05-02 19:46:36,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-02 19:46:36,801 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:46:36,801 INFO L523 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:46:37,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:46:37,021 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:46:37,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:46:37,021 INFO L82 PathProgramCache]: Analyzing trace with hash -810208713, now seen corresponding path program 1 times [2021-05-02 19:46:37,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:46:37,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710536095] [2021-05-02 19:46:37,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:46:37,053 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:46:37,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626609801] [2021-05-02 19:46:37,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:46:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:46:37,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-02 19:46:37,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:46:37,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,258 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-05-02 19:46:37,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:46:37,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710536095] [2021-05-02 19:46:37,258 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:46:37,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626609801] [2021-05-02 19:46:37,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626609801] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:46:37,259 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 19:46:37,259 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-05-02 19:46:37,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062832021] [2021-05-02 19:46:37,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-02 19:46:37,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:46:37,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-02 19:46:37,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-05-02 19:46:37,260 INFO L87 Difference]: Start difference. First operand 70 states and 92 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-05-02 19:46:37,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:46:37,432 INFO L93 Difference]: Finished difference Result 74 states and 95 transitions. [2021-05-02 19:46:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-02 19:46:37,432 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 56 [2021-05-02 19:46:37,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:46:37,434 INFO L225 Difference]: With dead ends: 74 [2021-05-02 19:46:37,434 INFO L226 Difference]: Without dead ends: 74 [2021-05-02 19:46:37,435 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 76.7ms TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-05-02 19:46:37,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-05-02 19:46:37,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-05-02 19:46:37,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 41 states have (on average 1.146341463414634) internal successors, (47), 43 states have internal predecessors, (47), 25 states have call successors, (25), 8 states have call predecessors, (25), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-02 19:46:37,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2021-05-02 19:46:37,441 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 56 [2021-05-02 19:46:37,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:46:37,441 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2021-05-02 19:46:37,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-05-02 19:46:37,442 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2021-05-02 19:46:37,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-02 19:46:37,443 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:46:37,443 INFO L523 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:46:37,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:46:37,654 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:46:37,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:46:37,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1603019557, now seen corresponding path program 1 times [2021-05-02 19:46:37,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:46:37,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488060026] [2021-05-02 19:46:37,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:46:37,663 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:46:37,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [564237647] [2021-05-02 19:46:37,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:46:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:46:37,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 25 conjunts are in the unsatisfiable core [2021-05-02 19:46:37,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:46:37,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:37,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,029 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-05-02 19:46:38,029 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:46:38,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488060026] [2021-05-02 19:46:38,029 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:46:38,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564237647] [2021-05-02 19:46:38,029 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564237647] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:46:38,030 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 19:46:38,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-05-02 19:46:38,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272963843] [2021-05-02 19:46:38,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-02 19:46:38,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:46:38,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-02 19:46:38,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-05-02 19:46:38,031 INFO L87 Difference]: Start difference. First operand 74 states and 95 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2021-05-02 19:46:38,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:46:38,224 INFO L93 Difference]: Finished difference Result 95 states and 116 transitions. [2021-05-02 19:46:38,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-02 19:46:38,228 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 63 [2021-05-02 19:46:38,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:46:38,229 INFO L225 Difference]: With dead ends: 95 [2021-05-02 19:46:38,229 INFO L226 Difference]: Without dead ends: 85 [2021-05-02 19:46:38,229 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 102.2ms TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-05-02 19:46:38,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-05-02 19:46:38,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2021-05-02 19:46:38,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 49 states have internal predecessors, (52), 25 states have call successors, (25), 10 states have call predecessors, (25), 9 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-02 19:46:38,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 100 transitions. [2021-05-02 19:46:38,235 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 100 transitions. Word has length 63 [2021-05-02 19:46:38,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:46:38,235 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 100 transitions. [2021-05-02 19:46:38,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2021-05-02 19:46:38,235 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 100 transitions. [2021-05-02 19:46:38,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-05-02 19:46:38,236 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:46:38,237 INFO L523 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:46:38,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-05-02 19:46:38,459 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:46:38,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:46:38,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1439194403, now seen corresponding path program 1 times [2021-05-02 19:46:38,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:46:38,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969395461] [2021-05-02 19:46:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:46:38,470 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:46:38,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750846602] [2021-05-02 19:46:38,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:46:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:46:38,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 41 conjunts are in the unsatisfiable core [2021-05-02 19:46:38,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:46:38,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:38,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:39,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:39,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:39,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:39,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:39,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:39,156 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 10 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-05-02 19:46:39,157 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:46:39,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969395461] [2021-05-02 19:46:39,157 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:46:39,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750846602] [2021-05-02 19:46:39,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750846602] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:46:39,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 19:46:39,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-05-02 19:46:39,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740180546] [2021-05-02 19:46:39,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-02 19:46:39,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:46:39,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-02 19:46:39,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-05-02 19:46:39,161 INFO L87 Difference]: Start difference. First operand 82 states and 100 transitions. Second operand has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 13 states have internal predecessors, (29), 7 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2021-05-02 19:46:39,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:46:39,720 INFO L93 Difference]: Finished difference Result 128 states and 160 transitions. [2021-05-02 19:46:39,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-02 19:46:39,721 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 13 states have internal predecessors, (29), 7 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) Word has length 86 [2021-05-02 19:46:39,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:46:39,722 INFO L225 Difference]: With dead ends: 128 [2021-05-02 19:46:39,722 INFO L226 Difference]: Without dead ends: 127 [2021-05-02 19:46:39,723 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 322.2ms TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2021-05-02 19:46:39,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-05-02 19:46:39,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 122. [2021-05-02 19:46:39,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 70 states have (on average 1.1142857142857143) internal successors, (78), 72 states have internal predecessors, (78), 38 states have call successors, (38), 14 states have call predecessors, (38), 13 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2021-05-02 19:46:39,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 152 transitions. [2021-05-02 19:46:39,737 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 152 transitions. Word has length 86 [2021-05-02 19:46:39,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:46:39,737 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 152 transitions. [2021-05-02 19:46:39,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 13 states have internal predecessors, (29), 7 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2021-05-02 19:46:39,738 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 152 transitions. [2021-05-02 19:46:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-05-02 19:46:39,739 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:46:39,739 INFO L523 BasicCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:46:39,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:46:39,940 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:46:39,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:46:39,941 INFO L82 PathProgramCache]: Analyzing trace with hash -2120729957, now seen corresponding path program 2 times [2021-05-02 19:46:39,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:46:39,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753646324] [2021-05-02 19:46:39,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:46:39,951 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:46:39,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873572578] [2021-05-02 19:46:39,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:46:40,026 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 19:46:40,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 19:46:40,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 36 conjunts are in the unsatisfiable core [2021-05-02 19:46:40,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:46:40,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-05-02 19:46:40,443 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:46:40,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753646324] [2021-05-02 19:46:40,443 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:46:40,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873572578] [2021-05-02 19:46:40,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873572578] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:46:40,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 19:46:40,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-05-02 19:46:40,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759710785] [2021-05-02 19:46:40,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-02 19:46:40,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:46:40,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-02 19:46:40,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-05-02 19:46:40,445 INFO L87 Difference]: Start difference. First operand 122 states and 152 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 7 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) [2021-05-02 19:46:40,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:46:40,755 INFO L93 Difference]: Finished difference Result 160 states and 206 transitions. [2021-05-02 19:46:40,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-02 19:46:40,755 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 7 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) Word has length 109 [2021-05-02 19:46:40,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:46:40,757 INFO L225 Difference]: With dead ends: 160 [2021-05-02 19:46:40,757 INFO L226 Difference]: Without dead ends: 159 [2021-05-02 19:46:40,757 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 140.3ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-05-02 19:46:40,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-05-02 19:46:40,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 154. [2021-05-02 19:46:40,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 87 states have (on average 1.1264367816091954) internal successors, (98), 89 states have internal predecessors, (98), 51 states have call successors, (51), 16 states have call predecessors, (51), 15 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2021-05-02 19:46:40,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 198 transitions. [2021-05-02 19:46:40,766 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 198 transitions. Word has length 109 [2021-05-02 19:46:40,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:46:40,767 INFO L480 AbstractCegarLoop]: Abstraction has 154 states and 198 transitions. [2021-05-02 19:46:40,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 7 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) [2021-05-02 19:46:40,767 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 198 transitions. [2021-05-02 19:46:40,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-05-02 19:46:40,769 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:46:40,769 INFO L523 BasicCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:46:40,988 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:46:40,989 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:46:40,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:46:40,989 INFO L82 PathProgramCache]: Analyzing trace with hash 435194, now seen corresponding path program 3 times [2021-05-02 19:46:40,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:46:40,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45363160] [2021-05-02 19:46:40,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:46:40,998 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:46:40,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2032765486] [2021-05-02 19:46:40,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:46:41,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-05-02 19:46:41,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 19:46:41,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 37 conjunts are in the unsatisfiable core [2021-05-02 19:46:41,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:46:41,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:41,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:41,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:41,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:41,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:41,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:41,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:41,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:41,305 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 123 proven. 35 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2021-05-02 19:46:41,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:46:41,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45363160] [2021-05-02 19:46:41,305 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:46:41,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032765486] [2021-05-02 19:46:41,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032765486] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:46:41,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 19:46:41,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-05-02 19:46:41,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284427713] [2021-05-02 19:46:41,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-02 19:46:41,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:46:41,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-02 19:46:41,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-05-02 19:46:41,307 INFO L87 Difference]: Start difference. First operand 154 states and 198 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 5 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2021-05-02 19:46:45,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:46:45,619 INFO L93 Difference]: Finished difference Result 172 states and 216 transitions. [2021-05-02 19:46:45,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-02 19:46:45,620 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 5 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) Word has length 116 [2021-05-02 19:46:45,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:46:45,624 INFO L225 Difference]: With dead ends: 172 [2021-05-02 19:46:45,624 INFO L226 Difference]: Without dead ends: 170 [2021-05-02 19:46:45,625 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 128.5ms TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-05-02 19:46:45,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-05-02 19:46:45,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 141. [2021-05-02 19:46:45,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 84 states have (on average 1.0833333333333333) internal successors, (91), 86 states have internal predecessors, (91), 39 states have call successors, (39), 18 states have call predecessors, (39), 17 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2021-05-02 19:46:45,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 168 transitions. [2021-05-02 19:46:45,632 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 168 transitions. Word has length 116 [2021-05-02 19:46:45,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:46:45,638 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 168 transitions. [2021-05-02 19:46:45,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 5 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2021-05-02 19:46:45,638 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 168 transitions. [2021-05-02 19:46:45,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-05-02 19:46:45,640 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:46:45,641 INFO L523 BasicCegarLoop]: trace histogram [18, 17, 17, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:46:45,845 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-05-02 19:46:45,845 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:46:45,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:46:45,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1618316395, now seen corresponding path program 4 times [2021-05-02 19:46:45,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:46:45,846 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090330865] [2021-05-02 19:46:45,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:46:45,862 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:46:45,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1189806320] [2021-05-02 19:46:45,862 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:46:45,924 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 19:46:45,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 19:46:45,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-02 19:46:45,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:46:45,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:45,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:46,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:46:47,528 WARN L159 QuantifierPusher]: Ignoring assumption.